Abstract: A mercuric maleimide is utilized as a pharmaceutical kit for preparing radiohalogenated maleimides.

Abstract: A process for producing N-substituted maleimides which comprises heating maleic anhydride and an aromatic or aliphatic amine, or maleic acid monoamides obtained from them, in the presence of an ion exchange resin in an organic solvent to effect cyclodehydration.

Abstract: Novel derivatives of N-phenylmaleic acid imide and N-phenylsuccinimide have good pre- and post-emergence selective herbicidal properties and they influence plant growth. The compounds correspond to the formula I ##STR1## in which .vertline.: represent a single or double bond,R.sup.1 represents hydrogen or fluorine,R.sup.2 represents halogen,Y represents C.sub.1 -C.sub.8 -alkyl,Z represents hydrogen or C.sub.1 -C.sub.8 -alkyl, andA represents hydrogen or a group ##STR2## wherein R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7 and R.sup.8 represent customary organic radicals and X represents oxygen, sulphur, SO, SO.sub.2, NH, alkylimino or alkenylimino.

Abstract: Novel N-(meth)allyloxyphenylmaleimides are prepolymerized with at least one bis-imide and formulated, together with at least one imidazole compound, into thermosetting compositions useful for the production of a wide variety of shaped articles having improved mechanical properties.

Abstract: A method for the production of maleimides, which comprises subjecting maleinamic acids to ring-closure imidation in an organic solvent capable of forming an azeotrope with water in the presence of an acid catalyst at a temperature in the range of 120.degree. to 250.degree. C. while removing the formed water in the form of an azeotrope with said organic solvent and thereafter purifying the produced maleimides.

Abstract: A method for the production of maleimides, which comprises subjecting maleinamic acids to ring-closure imidation in an organic solvent capable of forming an azeotrope with water in the presence of an acid catalyst at a temperature in the range of 120.degree. C. to 250.degree. C. while removing the formed water in the form of an azeotrope with said organic solvent and thereafter purifying the produced maleimides.

Abstract: Novel, heat-stable imido polymers, well adopted, e.g., as coating or molding resins, comprise the polymerizates of (a) at least one N,N'-bismaleimide, (b) at least one diprimary diamine, and (c) at least one N-(meth)-allyloxyphenylmaleimide.

Abstract: A radiopharmaceutical for antibody labeling comprising an iodophenyl maleimide that attaches thiol sites of proteins thereby maintaining bioreactivity largely located at the nitrogen sites.

Abstract: This invention relates to a process for preparing a malonic acid derivative compound of formula (i) depicted herein in high yield and high purity by reacting a malonic acid derivative compound of formula (ii) depicted herein with an alkylating agent of formula (iii) depicted herein in the presence of a solvent and a base.

Abstract: A process for the preparation of N-brominated or N-chlorinated phenylmaleimide by reacting maleic anhydride and a brominated or chlorinated aniline compound at temperatures of from about 100.degree. C. to about 210.degree. C. in the presence of tin containing catalyst compound and optionally an inert solvent.

Abstract: Thermoset products are prepared by polymerizing (A) at least one thermosettable compound which contains both a maleimide group and a cyanate group such as 3-(2,5-dihydro-2,5-dioxo-1H-pyrrol-1-yl)phenyl cyanate and optionally (B) at least one of (1) at least one aromatic polycyanate such as bisphenol A dicyanate; (2) at least one polymaleimide such as N,N'-(methylenedi-p-phenylene)bismaleimide; (3) at least one material having an average of more than one vicinal epoxide group per molecule such as a diglycidyl ether of bisphenol A; (4) at least one polymerizable ethylenically unsaturated material such as styrene; or (5) a mixture of any two or more of components 1-4 in any combination.

Abstract: Provided is a method for preparing diaryl iodonium salts represented by the formula:[Ar.sub.1 --I.sup..sym. --Ar.sub.2 ]HSO.sub.4.sup..crclbar.wherein Ar.sub.1 and Ar.sub.2 respectively are an aryl group which may be substituted with an electron donor group and which may be the same or different which comprises subjecting a compound represented by the formula Ar.sub.1 --H wherein Ar.sub.1 is as defined above and a compound Ar.sub.2 --I wherein Ar.sub.2 is as defined above to a coupling reaction in a sulfuric acid solution containing an oxidizing agent and diluted with a diluting agent to a concentration of 85% by weight or less at a reaction temperature in the range from -20.degree. to +35.degree. C.

Abstract: The invention is a compound which comprises an amido alkenoic acid or a water-soluble salt thereof and and arylcyclobutene moiety, wherein the cyclobutene moiety is fused to the aryl radical, and wherein the amide nitrogen is connected to the aryl radical of the arylcyclobutenyl moiety by a direct bond or a bridging member.

Abstract: A process is provided for the nitrogenation of hydrocarbons, resulting in the production of cyclic imides and nitriles from hydrocarbons contacted with molecular oxygen and a nitrogenating agent, including ammonia or primary amines, in the presence of an oxidation catalyst containing variable valency metal oxides, in the vapor phase at elevated temperature.

Abstract: A method of combatting fungi which comprises applying to fungi or a fungus habitat a fungicidally effective amount of at least one maleic acid N-aralkyl-imide of the formula ##STR1## in which X is hydrogen or halogen,Hal is halogen, andm is 2,3 or 4.Those compounds are new in whichHal is chlorine or bromine, andX is hydrogen or bromine if m is 2, orX is chlorine if m is 4.

Abstract: Disclosed are novel alkenylphenylmaleimide derivatives having the general formula ##STR1## where R is an alkenyl radical of from 3 to 12 carbon atoms, R' is a hydrogen atom, a halogen atom, or a straight-chain or branched alkyl radical of from 1 to 4 carbon atoms, and n is a whole number of from 1 to 4, and linear dimers thereof as well as a process for the preparation of such maleimide compounds.

Abstract: An ether imide of the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6 and D are as defined in the specification produced by reacting a diamine with an ethylenically unsaturated dicarboxylic acid can give a composition together with one or more unsaturated polyesters, epoxy compounds, amines, and the like to give shaped articles excellent in flexibility and heat resistance.

Abstract: A 2,3-dichloro-N-difluoromethoxyphenylmaleimide of the formula (I): ##STR1## is useful as an agricultural and horticultural fungicide, particularly for fruit trees.

Abstract: Compounds of the formula: ##STR1## wherein A is O or S, halo is chloro, bromo or fluoro; X' is --CH.sub.2 --, O or S; X is hydrogen or halo; R.sup.1 and R.sup.2 are the same or different radicals selected from hydrogen or lower alkyl; and Z can be a variety of substituents and agronomically acceptable salts, esters and amides as well as other heterocyclic benzenes are disclosed as selective herbicides.

Abstract: Maleimide compounds represented by the general formula (I) ##STR1## where R and R' are a hydrogen atom, a halogen atom, or an alkyl radical of from 1 to 4 carbon atoms, and n and n' are a whole number of from 1 to 4; and a process for the preparation of the maleimide compounds, in which a maleamic acid represented by the general formula (II) ##STR2## where R and R' are a hydrogen atom, a halogen atom, or an alkyl radical of from 1 to 4 carbon atoms, and n and n' are a whole number of from 1 to 4, is contacted with a dehydrating agent in an organic solvent.

Abstract: Disclosed are novel alkenylphenylmaleimide derivatives having the general formula ##STR1## where R is an alkenyl radical of from 3 to 12 carbon atoms, R' is a hydrogen atom, a halogen atom, or a straight-chain or branched alkyl radical of from 1 to 4 carbon atoms, and n is a whole number of from 1 to 4, and linear dimers thereof as well as a process for the preparation of such maleimide compounds.

Abstract: The invention relates to new arylsulfonylazides as well as the use of these compounds. The new compounds are characterized by the general formula: ##STR1## where R=aryl; x=1 or 2; and R.sup.1 and R.sup.2 are selected from H, CH.sub.3 and Cl and may be the same or different, with the provision that CH.sub.3 and Cl are not present side by side. The compounds according to the invention are suitable as photoinitiators in the preparation of relief structures by phototechniques from olefinically unsaturated polymers, as well as cross-link enhancing agents in the radical-wise cross linking of thermoplastic polymers.