专利号:US-9096519-B2 优先权日:2013-01-10 标 题 :Process for the synthesis of ketones from internal alkenes 发明人:MORANDI BILL; GRUBBS ROBERT H; WICKENS ZACHARY K; LERCH MICHAEL M 权利人:CALIFORNIA INST OF TECHN 摘要:The present invention is directed to methods for oxidizing internal olefins to ketones. In various embodiments, each method comprising contacting an organic substrate, having an initial internal olefin, with a mixture of (a) a biscationic palladium salt; and (b) an oxidizing agent; dissolved or dispersed in a solvent system to form a reaction mixture, said solvent system comprising at least one C 2-6 carbon nitrile and optionally at least one secondary alkyl amide, said method conducted under conditions sufficient to convert at least 50 mol % of the initial internal olefin to a ketone, said ketone positioned on a carbon of the initial internal olefin. The transformation occurs at room temperature and shows wide substrate scope. Applications to the oxidation of seed oil derivatives and a bioactive natural product are described.
专利号:US-9150498-B2 优先权日:2011-10-25 标题:Process for the preparation of oseltamivir and methyl 3-epi-shikimate 发明人:RAWAT VARUN; DEY SOUMEN; ARUMUGAM SUDALAI 权利人:COUNCIL SCIENT IND RES 摘要:The present invention discloses high yielding enantioselective process for synthesis of Oseltamivir from readily available starting material, cis-1,4-butene diol. The process features incorporation of chirality using sharpless asymmetric epoxidation (AE) and diastereoselective Barbier allylation and construction of cyclohexene carboxylic acid ester core through a ring closing metathesis (RCM) reaction. Further also disclosed herein is synthesis of (−)-methyl 3-epi-shikimate.
专利号:US-5026918-A 优先权日:1990-04-27 标 题:Synthesis of 2,3,5-trisubstituted-2-cyclopentenones via base induced cyclization of alpha-chloro unsaturated ketones 发明人:MATHEW JACOB 权利人:PETROLITE CORP 摘要:2,3,5-trisubstituted-2-cyclopentenones or 2,3-disubstituted-2-cyclopentenones (such as cis-jasmone) are prepared by contacting a 3-chloro-3,4-disubstituted-4-pentene-2-one with a strong base. Methods of preparing the reactants are also disclosed.
专利号:US-9657030-B2 优先权日:2010-06-11 标 题 :Transition metal-catalyzed processes for the preparation of N-allyl compounds and use thereof 发明人:GIGUERE JOSHUA ROBERT; MCCARTHY KEITH EDWARD; REISCH HELGE ALFRED; SANDOVAL SERGIO; STYMIEST JAKE LARRY 权利人:RHODES TECH 摘要:The present disclosure provides processes for the N-dealkylation of tertiary amines and the use of transition metal catalysts to prepare tertiary N-allyl amine derivatives and secondary amine derivatives thereof. The tertiary amines can be alkaloids and, more particularly, the tertiary amines can be opioids. In specific embodiments, the present disclosure provides methods for use in processes for the synthesis of naloxone and naltrexone from oripavine.
专利号:US-7179918-B2 优先权日:2001-06-11 标 题:HIV protease inhibitors, compositions containing the same, their pharmaceutical uses and materials for their synthesis 发明人:CANAN KOCH STACIE S; ALEXANDER THERESE N; BURKE BENJAMIN J; JEWELL TANYA M; KUCERA DAVID J; LINTON MARIA ANGELICA; MITCHELL JR LENNERT J; REICH SIEGFRIED H; SKALITZKY DONALD J; TATLOCK JOHN H; VARNEY MICHAEL D; VIRGIL SCOTT C; WEBBER STEPHEN E; WORLAND STEPHEN T; BARVIAN MARK; BOLTON GARY; BOYER JR FREDERICK EARL; MACHAK JEFFREY J; HOLLER TOD; MURPHY SEAN T; MELNICK MICHAEL; JOSYULA VARA PRASAD 权利人:AGOURON PHARMA 摘要:Compounds of the formula: n nwhere the formula variables are as defined herein, are disclosed that advantageously inhibit or block the biological activity of the HIV protease. These compounds, as well as pharmaceutical compositions containing these compounds, are useful for treating patients or hosts infected with the HIV virus. Intermediates and synthetic methods for preparing such compounds are also described.
专利号:US-4207088-A 优先权日:1977-06-30 标题:Herbicidal 1,3-dioxanes 发明人:KONZ MARVIN J 权利人:FMC CORP 摘要:A new class of herbicidal compounds consisting of 1,3-dioxanes carrying substituents other than hydrogen in the 2-, 4-, 5-, and 6-positions of the dioxane ring exhibits preemergence and postemergence herbicidal activity, controlling effectively the growth of selected grassy species. The synthesis of members of this class is described in detail, and the utility of representative compounds in exemplified.
摘要:Bubnov, Yu. N.; Kolomnikova, G. D., Science of Synthesis Knowledge Updates, (2012) 3, 287. 摘要:Roy, M.-N.; Lindsay, V. N. G.; Charette, A. B., Science of Synthesis: Stereoselective Synthesis, (2011) 1, 745.