Abstract: The compounds of the invention exhibit antiprotozoal, antimicrobial, and anticancer properties that are useful for the treatment or prevention of infections or cancer in a patient (e.g., a human). For example, the compounds and methods described herein can be used for the treatment or prevention of protozoal infections such as leishmaniasis, malaria, and trypanosoma infections, bacterial infections such as S. aureus and C. albicans, and cancers such as breast, colon, lung, or prostate cancer. The invention further provides methods of synthesizing such compounds as well as kits useful for administering the compounds.

Abstract: Provided are 5-acetoxy-(E3)-3-pentenyl methoxymethyl ether which can be prepared in conventional reaction equipment and a method for preparing an (E3)-3-alkenyl acetate by using it. More specifically, 5-hydroxy-(E3)-3-pentenyl methoxymethyl ether obtained by reacting 4-formyl-(E3)-3-butenyl methoxymethyl ether with a reductant is reacted with an acetylating agent to prepare 5-acetoxy-(E3)-3-pentenyl methoxymethyl ether. (E3)-3-alkenyl methoxymethyl ether obtained by a coupling reaction between the 5-acetoxy-(E3)-3-pentenyl methoxymethyl ether and a Grignard reagent is treated with an acid, and then reacted with an acetylating agent to prepare the (E3)-3-alkenyl acetate.

Abstract: A compound of formula (I) wherein R1 and R2 are independently selected from hydrogen, methyl, ethyl, propyl and isopropyl; or R1 and R2 together form a saturated or monounsaturated 5- or 6-membered hydrocarbon ring, as represented by the arcuate dotted line; R3 is selected from methyl and ethyl; R4 is selected from methyl, ethyl, propyl, isopropyl, cyclopropyl, butyl, isobutyl, cyclobutyl and cyclopentyl; R5 is selected from hydrogen and methyl, and the dotted line between positions 3? and 4? represents an optional double bond. The compounds have a musk odour and are useful in fine and functional fragrances.

Abstract: A method for manufacturing a composition including telechelic oligomers the ends of which carry reactive functions, the method including the contacting of at least one waste material containing rubber, preferable tire waste, with a chemical degradation agent selected from cleavage agents that are specific for double bonds; and a transfer agent in the presence of a catalysts; at a temperature from 15 to 400° C., preferably from 17 to 35° C.; at ambient pressure. The composition of oligomers that can be prepared by the method is also described.

Abstract: Provided are umami taste and savoury flavour enhancing compounds of formula (I) wherein R1 is selected from 0 and OH, the dotted line representing a bond present when R1 is 0, R2 is a hydrocarbon residue having 6 to 22 carbon atoms, comprising from 0-4 unsaturated carbon-carbon bonds. The compounds can be added to food products, beverages and other consumable products.

Abstract: The present invention relates to novel alkoxy enones and enamino ketones, and to a novel process for preparation thereof. Alkoxy enones and enamino ketones are valuable intermediates for preparation of pyrazoles and anthranilamides, which can be used as insecticides.

Abstract: A compound of formula (I) wherein R1 and R2 are independently selected from hydrogen, methyl, ethyl, propyl and isopropyl; or R1 and R2 together form a saturated or monounsaturated 5- or 6-membered hydrocarbon ring, as represented by the arcuate dotted line; R3 is selected from methyl and ethyl; R4 is selected from methyl, ethyl, propyl, isopropyl, cyclopropyl, butyl, isobutyl, cyclobutyl and cyclopentyl; R5 is selected from hydrogen and methyl, and the dotted line between positions 3? and 4? represents an optional double bond. The compounds have a musk odour and are useful in fine and functional fragrances.

Abstract: The invention provides a process for preparing siloxanes modified with organic esters, by hydrosilylating siloxanes with terminally unsaturated esters, which comprises preparing the terminally unsaturated esters used using at least one enzyme as catalyst.

Abstract: The present invention relates to novel alkoxy enones and enamino ketones, and to a novel process for preparation thereof. Alkoxy enones and enamino ketones are valuable intermediates for preparation of pyrazoles and anthranilamides, which can be used as insecticides.

Abstract: A HASE-type rheology modifier containing an associative monomer which is functionalised by a hydrophobic group of an oxo alcohol base is provided. A method to prepare the HASE rheology modifier and its use in a method to thicken and create a Newtonian rheological profile in an aqueous formulation such as a water based paint is also provided.

Abstract: The invention provides a process for preparing siloxanes modified with organic esters, by hydrosilylating siloxanes with terminally unsaturated esters, which comprises preparing the terminally unsaturated esters used using at least one enzyme as catalyst.

Abstract: 1-Chloro-2-methyl-4-acyloxy-2-butene derivatives can be synthesized in good yields and high purity starting from isoprene and employing a chlorohydrin formation reaction in a system made of N-chloroisocyanuric acid derivatives and water, followed by esterification and rearrangement of the crude product mixture.

Abstract: Synthetic methods and intermediates useful in the preparation of lactone containing compounds such as discodermolide and compounds which mimic the chemical or biological activity of discodermolide are provided.

Abstract: 1-Chloro-2-methyl-4-acyloxy-2-butene derivatives can be synthesized in good yields and high purity starting from isoprene and employing a chlorohydrin formation reaction in a system made of N-chloroisocyanuric acid derivatives and water, followed by esterification and rearrangement of the crude product mixture.

Abstract: There are provided a dihalogen derivative represented by formula (2): wherein X represents a halogen atom and R2 represents a protective group for a hydroxyl group; a process for producing the same; and a process for producing vitamin A by use of said dihalogen derivative.

Abstract: The present invention relates to a process for the preparation of esters from alcohols using acetic acid as acetylating agent and clays as catalysts, which comprises the preparation of esters in a single step from the reaction of aliphatic, acyclic, cyclic, heterocyclic, &agr;,&bgr;-unsaturated and aromatic alcohols with carbon atoms in the range of C1 to C10 with acetic acid in a molar ratio of 1:3 to 11 using reusable natural montmorillonite/metal ion-exchanged clay catalysts in the solvent medium of aliphatic, aromatic, or chlorinated hydrocarbons at 30-140° C. for a period in the range of 0.02 to 3.0 hrs, and recovering the corresponding esters by simple work-up procedure.

Abstract: Process for the esterification of organic acids with alcohols in a reactor of the chromatographic type in which the heterogeneous solid phase is capable of acting both as an esterification catalyst and as a means exhibiting preferential adsorption towards one of the reaction products (typically water). The process to which the present invention relates is particularly improved compared with conventional technology owing to the use, as the means for regenerating the catalyst, of a desorbent to which has been added a second compound, generally the anhydride of the acid used in the esterification reaction, which, by chemical reaction, completes the removal of the adsorbed water.

Abstract: An alicyclic compound of the formula (1) is disclosed: wherein R1 and R2 each independently is a hydroxyl group, a C1-8 hydroxyalkyl group, or a C3-8 hydroxycycloalkyl group; R3, R4 and R5 each independently is a hydrogen, a C1-8 hydroxyalkyl group, a C1-6 carboxylic acid or a C3-8 carboxylic acid ester; k is an integer of 0, 1, 2, 3, 4, 5 or 6. The compound of the formula (1) can be applied to dissolution inhibitors for preparing positive photoresist composition.

Abstract: The specification describes various polymers having monomer of formula (I): In formula (I), R1 and R2 are, independently, hydrogen, a C1-C24 alkyl group, an aromatic or heteroaromatic group, a C3-C8 cycloalkyl or C2-C7 heterocycloalkyl group, or a —C(O)R3 group in which R3 is a C1-C24 alkyl group, an aromatic or heteroaromatic group, a C3-C8 cycloalkyl or C2-C7 heterocyclic group; or a —CH2—C(O)—R4 group in which R4 is a C1-C6 alkyl group. At least one of R1 and R2 is a —C(O)R3 group. The polymer may be a homopolymer or a copolymer containing other ethylenically unsaturated monomers. The polymer may be used in a variety of coating compositions such as inks, adhesives, paints and films. Unique monomers where both R1 and R2 are acetoacetyl groups and novel monomers where R2 is an acetoacetyl group are also described.

Abstract: There is provided a compound of the formula[I]: wherein R represents a hydrogen atom or a protective group for a hydroxyl group; and A represents a hydrogen atom, a halogen atom or a group of the formula A1: Q represents Q3: when A represents a halogen atom or a protective group for a hydroyl group, A represents Q4:  wherein R1 and R2 represent a hydrogen atom or a protective group for a hydroxyl group; and when A represents a hydrogen atom, Q is Q2:

Abstract: The present invention is directed to a process for the preparation of a compound of formula (X-a): or a pharmaceutically acceptable salt form thereof, wherein: R1 is selected from the group consisting of: C1-5 alkyl substituted with 0-5 R1a, —(CH2)r—C3-10 cycloalkyl substituted with 0-5 R1a, and —(CH2)r-aryl substituted with 0-5 R1a. Compounds of Formula (X-a) are macrocyclic molecules containing anti-succinate residues which inhibit metalloproteinases such as aggrecanase, and the production of tumor necrosis factor (TNF). The anti-succinates are formed by an Ireland Claisen rearrangement of a silyl ketene acetal which proceeds with high stereoselectivity.

Abstract: The invention provides a process that includes isomerizing at least one allylic substrate having an acyloxyl group or a hydroxyl group at the allyl position thereof, to produce a corresponding allylic isomer, wherein the isomerizing is conducted in the presence of a catalyst that includes a Group VIII-X metal compound and a phosphite compound.

Abstract: The present invention relates to a process for the preparation of esters from alcohols using acetic acid as acetylating agent and clays as catalysts, which comprises the preparation of esters in a single step from the reaction of aliphatic, acyclic, cyclic, heterocyclic, &agr;,&bgr;-unsaturated and aromatic alcohols with carbon atoms in the range of C1 to C10 with acetic acid in a molar ratio of 1:3 to 11 using reusable natural montmorillonite/metal ion-exchanged clay catalysts in the solvent medium of aliphatic, aromatic, or chlorinated hydrocarbons at 30-140° C. for a period in the range of 0.02 to 3.0 hrs, and recovering the corresponding esters by simple work-up procedure.

Abstract: A cationic amphipathic compound of formula (I), ##STR1## wherein A is a single bond, an NH--R' grouping or (a), wherein --R'-- is a straight or branched, optionally substituted, saturated or unsaturated C.sub.1-22 aliphatic chain optionally interrupted by one or more O, S or N heteroatoms and one or more saturated, unsaturated or aromatic carbocyclic or heterocyclic radicals; each of R.sub.1, R.sub.2 and R.sub.3, which are the same or different, is a higher acyl or alkyl grouping; each of R.sub.7, R.sub.8 and R.sub.9, which are the same or different, is a (CH.sub.2).sub.n alkylene radical where 1.ltoreq.N.ltoreq.6; each of R.sub.4, R.sub.5 and R.sub.6, which are the same or different, is a hydrogen atom or an optionally substituted C.sub.1-22 alkyl, alkenyl, alkynyl or acyl radical optionally interrupted by one or more heteroatoms selected from), S and N, or one or more saturated, unsaturated or aromatic carbocyclic or heterocyclic radicals, or else at least two of the groupings R.sub.4, R.sub.5 and R.sub.

Abstract: The present invention relates to a process for the preparation of trifluoromethylated derivatives of the formula CF.sub.3 CCl.dbd.CHCH.sub.2 OC(.dbd.O)R, wherein R is unsubstituted or substituted C.sub.1 to C.sub.6 straight chain or branched alkyl, unsubstituted or substituted C.sub.3 to C.sub.7 cycloalkyl, unsubstituted or substituted C.sub.2 to C.sub.12 alkenyl, a benzyl group unsubstituted or substituted with R', a phenyl group unsubstituted or substituted with R'; R' is an unsubstituted or substituted C.sub.1 to C.sub.6 straight chain or branched alkyl; and wherein where R and/or R' are substituted each is substituted with R', by reaction of HCFC-353 with carboxylic acid salts. The trifluoromethylated derivatives, particularly CF.sub.3 CCl.dbd.CHCH.sub.2 OC(.dbd.O)CH.sub.3, are versatile intermediates for the synthesis of a wide variety of trifluoromethylated organic compounds, which find utility as pharmaceuticals, agricultural chemicals, and materials such as liquid crystals.

Abstract: A process for the manufacture of a .gamma.-acetoxy-tiglic aldehyde by reacting a .gamma.-bromotiglic aldehyde or a .gamma.-chlorotiglic aldehyde with sodium acetate or potassium acetate in an organic solvent in the presence of a phase transfer catalyst.

Abstract: Use of fluorinated polymers based on fluoropolyethers for the preparation of crosslinkable high dry formulations comprising a fluorinated part R.sub.F and optionally an hydrogenated part R.sub.H, not containing groups capable of linking by means of hydrogen bonds to basic acceptors, an hydrogenated part Rh.sub.1 and Rh.sub.2, wherein Rh.sub.1 is equal to or different from Rh.sub.2, and Rh.sub.1 and/or Rh.sub.2 being linking bonds containing at least a functional group capable of linking by means of hydrogen bonds with basic acceptors, the bonds joining the fluorinated part to the hydrogenated part being of ether C--O simple type, the terminals T'.sub.a and T" being such as to render the structure mono-, bi- or polyfunctional, and subsequent crosslinking of the fluorinated polymer, the monofunctional products being always in admixture with a resin having even a higher functionality than the described type; the preferred fluorinated products have the formula:T"--(Rh.sub.2).sub.y (R.sub.H).sub.x --R.sub.F --(R.

Abstract: The invention relates to a process for the preparation of compounds of the formula ##STR1## characterized in that the radical X in sulphones of the formulaX--(CH.sub.2 --CH.sub.2 --O).sub.m --(CH.sub.2).sub.n --SO.sub.2 --CH.sub.2 --CH.sub.2 OH (2)is replaced by ##STR2## or a compound of the formula ##STR3## is added to the sulphone of the formulaCH.sub.2 .dbd.CH--SO.sub.2 --CH.sub.2 --CH.sub.2 --OH (3),the substituents having the meanings given in the description.

Abstract: Novel trifluoromethylated intermediates are provided which are useful in synthesizing trifluoromethylated organic compounds. Specifically, compounds of the formula CF.sub.3 CCl.dbd.CHCH.sub.2 X are provided, which compounds are versatile intermediates for the synthesis of a wide variety of trifluoromethylated organic compounds.

Abstract: The present invention provides a novel process for producing 4-acyloxy-2-methyl-2-buten-1-al readily in high yield from a readily available inexpensive industrial starting compound without using special reaction apparatuses and conditions.

Abstract: Novel acyclic terpene compounds useful as intermediates for producing sarcophytol A which have an anti-carcinogenic promotor activity and anti-tumor activity, which compounds are shown by the following general formula (I): ##STR1## [wherein R.sup.1 is a hydrogen atom, 1-alkoxyalkyl group, tetrahydrofuryl group, tetrahydropyranyl group or acyl group; R.sup.2 is a group of formula: --CHO, --CH.sub.2 OR.sup.3 or ##STR2## (wherein R.sup.3 is a hydrogen atom, 1-alkoxyalkyl group, tetrahydrofuryl group, tetrahydropyranyl group or acyl group; and R.sup.4 is C.sub.1 to C.sub.4 alkyl group) with the proviso that R.sup.1 and R.sup.3 do not represent the same substituents simultaneously; when R.sup.1 is a hydrogen atom, R.sup.3 is not acetyl group or tetrahydropyranyl group; and when R.sup.2 is a group of formula: ##STR3## R.sup.1 is not a hydrogen atom).

Abstract: This invention relates to a novel synthesis of 4-amino-5-hexenoic acid by thermal rearrangements, and to the novel intermediates produced thereby.

Abstract: The preparation of .alpha.,.beta.-unsaturated aldehydes and ketones IO.dbd.C(R.sup.1)--CR.sup.2 .dbd.CR.sup.3 R.sup.4 Iis carried out by acid hydrolysis of cyclic .alpha.,.beta.-unsaturated acetals II ##STR1## in the presence of saturated aldehydes.

Abstract: A process for the manufacture of 3-hydroxy-2-alkyl-4-pyrones of formula I is provided. ##STR1## The process comprises cyclizing a compound of formula II, ##STR2## an acidic medium and hydrolyzing the ester formed thereby to produce compound I. R.sup.1 represents methyl or ethyl; R.sup.2 represents lower alkanoyl or optionally substituted benzoyl; R.sup.3 represents --OH or --NR.sup.4 R.sup.5 ; and, R.sup.4 and R.sup.5 may be alike or different and represent lower alkyl. The pyrones of formula I wherein R.sup.1 represents methyl or ethyl are known flavorants and odorants.

Abstract: Conjugated diene compounds of the general formula: ##STR1## which are industrially advantageous intermediates for preparing sarcophytol A useful as an anticarcinogenic promotor or antitumor agent are provided.

Abstract: This application relates to monomers and homopolymers of diacetylenic ethers having the formula ##STR1## wherein X is alkyl, alkenyl, aryl, alkaryl, aralkyl, aralkenyl, monoalkylamino or dialkylamino and Y is alkyl, alkenyl or ##STR2## where X' is independently selected from the group of X. The invention also relates to the method of preparing and using said alkoxy diacetylenes.

Abstract: A process is described for the improved synthesis of the optically pure C.sub.10 -C.sub.24 fragment of the macrolide structure of the immunosuppressant FK-506. This compound is also useful as an intermediate for preparing FK-506 derivatives.

Abstract: Long chain diol diesters, notably 11- to 30- carbon aliphatic chains having two vicinal fatty acid esters or dicarboxylate-extended fatty acid esters, or two fatty acid esters of dicarboxylate-extended fatty acid esters separated by one or two methylene groups, attached to one end of the chain, are edible, preferably partially digestible, fat replacements for foods.

Abstract: The invention is directed to a new process for the preparation of carbinols of the general formula I ##STR1## by reaction chloral and olefins of the general formula ##STR2## and by optional acylation of the product comprising dissolving a catalyst of the general formula IIIFe.sub.n (NH.sub.4).sub.x Y.sub.m .multidot.A.sub.p IIIin chloral, then adding the olefin of the general formula II in order to produce a complex of the general formula IV ##STR3## from which a complex of the general formula V ##STR4## is formed, and from the reaction mixture a compound of the general formula I is obtained whereafter(a) the residual complex of the general formula V dissolved in the product is decomposed with an acidic solution and if desired the obtained product is distilled or(b) the product in the reaction mixture is acylated.The compounds prepared according to the invention can be utilized as intermediates when preparing e.g., permethrin and other pyrethroid insecticides.

Abstract: 3,9-Dihydroxynonyne and its derivatives protected at the 9-OH function, of the general formula I ##STR1## where R is hydrogen or a conventional alcohol protective group, and processes for the preparation of the compounds I.

Abstract: The present invention relates to a process for preparing linear alpha, omega difunctional molecules by a process which comprises isomerizing olefins having at least one terminal functional group to form a mixture of functionalized olefinic isomers and metathesizing said functionalized olefinic isomers to produce a mixture of difunctional molecules and internal olefins.

Abstract: The present invention relates to a process for metathesizing an olefin having at least one terminal functional group which comprises contacting said olefin at metathesis conditions with a catalyst comprising: (a) a transition metal selected from tungsten, molybdenum and rhenium, (b) an organometallic compound based on an element selected from aluminum, tin, lead, magnesium and titanium, and (c) an oxophilic agent having a metal-oxygen bond strength greater than the metal-oxygen bond strength of said transition metal.

Abstract: A plant metabolism regulating agent comprising as an active ingredient an alpha,beta or beta,gamma-un-saturated carboxylic acid or its derivative. It is useful for controlling the metabolism of a plant, facilitating the growth of a beneficial plant such as cereals by inhibiting the growth of undesirable plants or eradicating them, regulating the growth of a plant and dwarfing a plant.

Abstract: 1,1-dialkoxy- or 1,1-(.alpha.,.omega.-methylenedioxy)-non-2-yn-9-ol and their OH-protected derivatives of the general formula I ##STR1## where R.sup.1 and R.sup.2 are each C.sub.1 -C.sub.6 -alkyl or together form an alkylene chain of 2 to 5 carbon atoms and X is hydrogen or a protective group which can be eliminated, their preparation and their use as intermediates.

Abstract: Sulfur-substituted alkenyl compounds, synthesis thereof, intermediates therefor, and the use of the compounds to control pests.

Abstract: A compound of the formula ##STR1## wherein X has the formula --CR.sup.5 .dbd.CR.sup.6 --, --C.tbd.C-- or ##STR2## wherein ring A is phenyl, naphthyl or heterocyclic; wherein R.sup.1 is hydrogen, alkyl, alkanoyl or aroyl;wherein R.sup.2, R.sup.3 and R.sup.4, which may be the same or different, each is an electron withdrawing substituent of each is hydrogen or alkyl, alkoxy or dialkylamino, provided that when ring A is phenyl or naphthyl at least one of R.sup.2, R.sup.3 and R.sup.4 is an electron-withdrawing substitutent;wherein R.sup.5 and R.sup.6, each is hydrogen, halogeno or alkyl;wherein R.sup.7 is alkyl or halogenoalkyl; and wherein R.sup.8 has the formula --Y--Q--R.sup.9 wherein Y is straight- or branched-chain alkylene or alkenylene; wherein Q is --O--, --S--, --SO-- or --SO.sub.2 --; andwherein R.sup.9 is alkyl or up to 6 carbon atoms which contains one or more defined substituents, processes for their manufacture and pharmaceutical compositions containing them.

Abstract: 1,1-Dialkoxy-2-methyl-4,4-diacyloxy-2-butenes having the general structure: ##STR1## in which R.sub.1 represents alkyl substituents having from 1 to 5 carbon atoms, or both R.sub.1 substituents together represent a single ethylene or propylene substituent, or a single C.sub.1 -C.sub.2 alkyl substituent, and R.sub.2 represents alkyl substituents having from 1 to 5 carbon atoms, or cycloalkyl substituent having from 5 to 7 carbon atoms, or aromatic substituents (preferably phenyl substituents). These new compounds are useful as building blocks in the synthesis of terpenes and carotenoids.

Abstract: Novel Isoprene Derivatives which have mucosa-protective and gastric acid secretion-inhibiting properties and are useful for combatting ulcers both by treating and as a prophylaxis against gastric and/or duodenal ulcers.

Abstract: A process for the disproportionation of olefins comprising contacting said olefins under suitable reaction conditions with a neutral-carbene complex catalyst and then using anhydrous ammonia to effect separation of the catalyst and the organic products.

Abstract: This invention pertains to a new method for killing and controlling worms (Helminths), new formulations for killing and controlling worms in animals, new chemical compounds, and a new synthesis of northern hemisphere intermediates for the synthesis of milbemycin and avermectin macrolides.