Starting Materials Include An Acyclic Hydrocarbyl Ether Or An Acyclic Hydrocarbyl Alcohol Patents (Class 546/254)
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Publication number: 20120283446Abstract: The present invention relates to a method for synthesizing bio-based pyridine and picolines, said method including at least the following steps: a first step involving subjecting a glycerol filler, created from the methanolysis of vegetable oils or animal fats, to a dehydration reaction leading to acrolein; a second step involving partial condensation of the effluent from the first step so as to separate a water-rich flow as well as an acrolein-rich flow; and a third step involving reacting the acrolein from the preceding step with acetaldehyde in the presence of ammonia so as to obtain, by means of a condensation reaction, the biobased pyridine and picolines.Type: ApplicationFiled: October 22, 2010Publication date: November 8, 2012Applicant: ARKEMA FRANCEInventors: Jean-Luc Dubois, Jean-Francois Devaux
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Patent number: 7514559Abstract: The present invention provides a catalyst composite for the synthesis of 2- and 4-picolines and a process for the preparation thereof and use thereof for the synthesis of 2- and 4-Picolines.Type: GrantFiled: March 22, 2004Date of Patent: April 7, 2009Assignee: Council of Scientific and Industrial ResearchInventors: Pashupati Dutta, Subhash Chandra Roy, Shyam Kishore Roy, Tarun Kanti Goswami
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Patent number: 7019003Abstract: Novel PDF inhibitors and novel methods for their use are provided.Type: GrantFiled: March 1, 2002Date of Patent: March 28, 2006Assignee: Smithkline Beecham CorporationInventors: Jia-Ning Xiang, Siegfried B. Christensen, IV, Jinhwa Lee, Daniel J. Mercer
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Publication number: 20040023150Abstract: Photoresists and associated processes for microlithography in the extreme, far, and near UV are disclosed. The photoresists in some embodiments comprise (a) a fluorine-containing copolymer comprising a repeat unit derived from at least one ethylenically unsaturated compound characterized in that at least one ethylenically unsaturated compound is polycyclic and at least one ethylenically unsaturated compound contains at least one fluorine atom covalently attached to an ethylenically unsaturated carbon atom; and (b) at least one photoactive component.Type: ApplicationFiled: March 27, 2002Publication date: February 5, 2004Inventors: Andrew E. Feiring, Frank L. Schadt
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Patent number: 6596872Abstract: Described are preferred processes for preparing alkenyl-substituted nitrogenous heterocycles such as vinylpyridines, which comprise reacting a corresponding methyl-substituted heterocycle with a C1 compound such as formadehyde in the vapor phase over a zeolite catalyst having acidic and basic catalytic sites. The preferred zeolite is a medium-pore zeolite, for example having a constraint index of about 0.5 to about 12. Processes of the invention can be conducted as facile, one-step syntheses utilizing relatively low ratios of alkyl-substituted starting heterocycle (e.g. &agr;-picoline or &ggr;-picoline) to formaldehyde while nonetheless achieving high selectivities and yields of the corresponding alkenyl compound.Type: GrantFiled: October 22, 2001Date of Patent: July 22, 2003Assignee: Reilly Industries, Inc.Inventors: Colin H. McAteer, Aaron J. Edwards, Yarlagadda V. Subba Rao
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Patent number: 6528647Abstract: Disclosed is a process for selectively producing aliphatic cyclic amines which comprises reacting a dihydric alcohol characterized by four to six carbons, preferably 1,5-pentane diol, with excess ammonia in presence of ZSM-5 catalyst modified with group of elements nickel, copper or cobalt-containing, at a temperature of at least 250° C., wherein said catalyst incorporates at least one metal.Type: GrantFiled: March 27, 2001Date of Patent: March 4, 2003Assignee: Council of Scientific and Industrial ResearchInventors: Shivanand Janardan Kulkarni, Kondapuram Vijaya Raghavan, Radha Rani Vippagunta, Srinivas Nagabandi
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Patent number: 5952258Abstract: Disclosed is a process for the preparation of pyridine bases by a reaction of an aliphatic aldehyde and/or ketone with ammonia under gaseous phase using a specified catalyst in which a specified metal or combined metals are carried in or onto specified zeolites, for example, such as zeolites having a specified specific density range.Type: GrantFiled: April 29, 1996Date of Patent: September 14, 1999Assignee: Daicel Chemical Industries, Ltd.Inventors: Morihito Saitoh, Yasutaka Tanaka
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Patent number: 5714488Abstract: Compounds having the formula ##STR1## or a pharmaceutically acceptable salt thereof wherein W is selected from the group consisting of optionally substituted quinolyl, optionally substituted benzothiazolyl, optionally substituted benzoxazolyl, optionally substituted benzimidazolyl, optionally substituted quinoxalyl, optionally substituted pyridyl, optionally substituted pyrimidyl, and optionally substituted thiazolyl; R.sup.1 and R.sup.2 are one or more groups independently selected from hydrogen, alkyl, halolalkyl, alkoxy, and halogen; Z is selected from the group consisting of N--OH, N--O--A--COM, CH--COM, and CH--CH.dbd.N--0--A--COM wherein A is selected from the group consisting of alkylene, alkenylene, cycloalkylene, and optionally substituted alkylphenyl wherein the alkyl portion is of one to six carbon atoms, and M is selected from the group consisting of a pharmaceutically acceptable, metabolically clearable group, --OR.sup.3, and --NR.sup.4 R.sup.Type: GrantFiled: September 17, 1996Date of Patent: February 3, 1998Assignee: Abbott LaboratoriesInventors: Clint D. W. Brooks, Pramila Bhatia, Teodozyj Kolasa
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Patent number: 5496792Abstract: Cyclohexenone oxime ethers I ##STR1## R.sup.1 =C.sub.1 -C.sub.6 -alkyl; W=unsubstituted or C.sub.1 -C.sub.3 -alkyl-substituted C.sub.2 -C.sub.4 -alkylene chain;X=NO.sub.2, CN, halogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -haloalkyl; n=0-3 or 1-5 if all X's are halogen;R.sup.2 =C.sub.1 -C.sub.4 -alkoxy-C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.4 -alkylthio-C.sub.1 -C.sub.6 -alkyl, substituted or unsubstituted C.sub.3 -C.sub.7 -cycloalkyl, substituted or unsubstituted C.sub.5 -C.sub.7 -cycloalkenyl, a substituted or unsubstituted 5-membered saturated heterocycle containing 1 or 2 oxygen and/or sulfur atoms, substituted or unsubstituted 6- or 7-membered heterocycle having 1 or 2 non-adjacent oxygen and/or sulfur atoms and which is saturated or mono- or diunsaturated, substituted or unsubstituted 5-membered heteroaromatic containing 1 or 2N atoms and one O or S atom, phenyl or pyridyl, both of which are unsubstituted or bear 1-3 halogen, NO.sub.Type: GrantFiled: August 11, 1994Date of Patent: March 5, 1996Assignee: BASF AktiengesellschaftInventors: Ulf Misslitz, Norbert Meyer, Juergen Kast, Kaspar Bott, Helmut Walter, Karl-Otto Westphalen, Uwe Kardorff, Matthias Gerber
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Patent number: 4902802Abstract: A complex of an electron attracting group-substituted .eta..sup.5 -cyclopentadienylcobalt with a polyene or an acetylene.Type: GrantFiled: December 22, 1986Date of Patent: February 20, 1990Assignees: Denki Kagaku Kogyo Kabushiki Kaisha, Rikagaku KenkyusyoInventors: Hiroshi Yamazaki, Yasuo Wakatsuki
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Patent number: 4283339Abstract: Dioxane is prepared by reaction of polyethylene glycols in a catalytically active liquid reaction medium comprising a mixture of partial phosphate esters of a polyethylene glycol, and ammonium salts of partial esters of a polyethylene glycol. Along with dioxane, valuable co-products, including the compound 5-ethyl-2-methylpyridine, are formed from which the dioxane is readily separated in highly pure form. The catalytically active liquid reaction medium is derived from the reaction of ammonium dihydrogen phosphate with a polyethylene glycol at temperatures preferably in the range from 190.degree. to 225.degree. C. Temperatures of reaction between the polyethylene glycol and the catalytically active liquid reaction medium to form the dioxane and co-products are preferably in the range of from about 225.degree. C. to about 275.degree. C.Type: GrantFiled: June 29, 1979Date of Patent: August 11, 1981Assignee: Highland Resources, Inc.Inventor: Norman B. Godfrey
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Patent number: 4220783Abstract: A method is provided for synthesizing pyridine or alkylpyridines by reacting ammonia and a carbonyl reactant which is an aldehyde containing 2 to 4 carbon atoms, a ketone containing 3 to 5 carbon atoms or mixtures of said aldehydes and/or ketones under effective conditions in the presence of a catalyst comprising a crystalline aluminosilicate zeolite having a silica to alumina ratio of at least about 12 and a constraint index within the approximate range of 1 to 12 and recovering from the resulting reaction mixture, a product containing at least one compound of pyridine or an alkylpyridine. Addition of methanol and/or formaldehyde to the feed improves selectivity to unsubstituted pyridine.Type: GrantFiled: May 9, 1979Date of Patent: September 2, 1980Assignee: Mobil Oil CorporationInventors: Clarence D. Chang, William H. Lang