📜Erythro-2,3-Dibromobutanoic Acid置于三乙胺体系中,用57%的收率获得产物顺式-1-溴-1-丙烯 参考文献:An Improved Synthesis Of Isomerically Pure Cis-1-Bromopropene 标题:An Improved Synthesis Of Isomerically Pure Cis-1-Bromopropene 摘要: DOI:10.1021/jo00012A053
专利号:US-4749806-A 优先权日:1984-12-28 标题:Process for the synthesis of isocyanates and of isocyanate derivatives 发明人:TKATCHENKO IGOR; JAOUHARI RABIH; BONNET MICHEL; DAWKINS GORDON; LECOLIER SERGE 权利人:POUDRES & EXPLOSIFS STE NALE 摘要:The present invention relates to a process for the synthesis of isocyanates and of isocyanate derivatives. Isocyanates are obtained by reacting an organic halide with a metal cyanate in an organic medium in the presence of a catalyst consisting of a complex of nickel with at least one organic ligand, in which complex the nickel is in the zero oxidation state. A carbamate or a urea, respectively, are obtained by a subsequent reaction with a hydroxy compound or a primary or secondary amine. Isocyanates and their derivatives are used especially either as refined synthesis agents for the production of pesticides and medications, or as monomers or comonomers for the preparation of many macromolecular compounds.
专利号:US-7339066-B1 优先权日:2006-05-31 标题 :Intermediates for the synthesis of polypropionate antibiotics 发明人:PARKER KATHLYN; CAO HUANYAN 权利人:UNIV NEW YORK STATE RES FOUND 摘要:The invention relates to intermediate compounds of the formula n nwherein R 1 is H or a protecting group, R 2 and R 3 each independently represent H, methyl, or a leaving group, provided that at least one, but not both, of R 2 and R 3 is a leaving group. The intermediate compounds are useful for the synthesis of discodermolide, its derivatives, and related compounds.
专利号:US-7595418-B2 优先权日:2003-06-07 标 题:Protected 5,7-dihydroxy-4,4-dimethyl-3-oxoheptanoic acid esters and 5,7-dihydroxy-2-alkyl-4,4-dimethyl-3-oxoheptanoci acid esters for the synthesizing of epothilone and epothilone derivatives and process for the production of these esters 发明人:WESTERMANN JUERGEN; PLATZEK JOHANNES; PETROV ORLIN 权利人:BAYER SCHERING PHARMA AG 摘要:This invention describes protected 5,7-dihydroxy-4,4-dimethyl-3-oxoheptanoic acid ester and 5,7-dihydroxy-2-alkyl-4,4-dimethyl-3-oxoheptanoic acid ester for the synthesis of epothilones and epothilone derivatives and process for the production of these esters.
专利号:US-5596123-A 优先权日:1992-11-25 标 题 :Boric ester synthesis 发明人:ELGENDY SAID M A; DEADMAN JOHN J; PATEL GEETA; GREEN DONOVAN S; BABAN JEHAN A; KAKKAR VIJAY V; CLAESON GORAN K 权利人:THROMBOSIS RES INST 摘要:Stable alpha -substituted boronic esters, e.g. for use in peptide synthesis, are prepared by reacting a substituted alkene of the formula: with a disubstituted borane of the formula: wherein: (i) R1 and R2 are each selected from various groups which are preferably not leaving groups; (ii) X is halogen or other leaving group; (iii) Y is H or lower alkyl; (iv) Q1 and Q2 are each selected from various groups which are preferably such that the borane is non-hydrolyzable, and particularly Q1 and Q2 together may represent a residue of a diol such as catechol or pinanediol.
专利号:US-2001024798-A1 优先权日:1998-06-11 标题:Biomimetic combinatorial synthesis 发明人:SHAIR MATTHEW D; LINDSLEY CRAIG W; PELISH HENRY E; SHEEHAN SCOTT M; GOESS BRIAN C; LAYTON MARK E; CHAN LAWRENCE K; CHEN CHUO; WESTWOOD NICHOLAS J 摘要:The present invention provides biomimetic compounds and libraries thereof, as well as methods for their production. In general, the inventive method involves the selection of a desired biological synthetic pathway and mimics that synthetic pathway utilizing modern synthetic tools. The structures formed from this method are preferably generated in fewer than four steps. These scaffold structures can then be functionalized to yield biomimetic compounds and libraries of compounds. In preferred embodiments, biomimetic compounds and libraries are generated from an oxidative phenolic coupling reaction. In other particularly preferred embodiments, the compounds and libraries of compounds are generated from cascade reactions to yield bicyclo [n. 3.1 ] ring systems, medium ring systems, and fused ring systems. In addition to compounds, libraries and methods for their production, the present invention also provides pharmaceutical compositions and methods and kits for determining one or more biological activities of the library members.
专利号:US-2007282121-A1 优先权日:2006-05-31 标 题 :Intermediates for the synthesis of polypropionate antibiotics
摘要:Okamoto, K.; Ohe, K., Science of Synthesis Knowledge Updates, (2020) 1, 81. 摘要:Stoltz, B. M.; Mohr, J. T., Science of Synthesis: Stereoselective Synthesis, (2011) 3, 667. 摘要:Sandrock, D. L., Science of Synthesis: Cross Coupling and Heck-Type Reactions, (2012) 1, 330. 摘要:Stewart, S. G., Science of Synthesis: Cross Coupling and Heck-Type Reactions, (2012) 3, 461. 摘要:Ho, C.-Y.; Raja, D., Science of Synthesis: Knowledge Updates, (2023) 1, 66.