丙炔 反应生成1-丙炔溴化镁 参考文献:Poly(Dimethylsilmethylene) Methylacetylene Compound And A Method For The 标题:Poly(Dimethylsilmethylene) Methylacetylene Compound And A Method For The 摘要:该发明提供了一种新型的有机硅化合物聚(二甲基硅亚甲基)甲基乙炔化合物,化学式为mec.Tbd.C--Sime.Sub.2--Ch.Sub.2--Sime.Sub.2).Sub.N Me,其中me是甲基,N是1到25的正整数.该化合物通过将化学式为mec.Tbd.Cmgx的丙炔基镁卤化物(其中x是卤素原子),或者化学式为mec.Tbd.C--Sime.Sub.2--Ch.Sub.2 Mgcl的(丙炔基二甲基硅基)甲基镁氯化物与氯甲基二甲基氯硅烷在金属镁存在下反应,并水解反应产物来合成.具体地,1-丙炔基-1,1,3,3,3-五甲基二硅亚甲基,即n=1的这种创新化合物,是通过将(丙炔基二甲基硅基)甲基镁氯化物与三甲基氯硅烷反应合成的.
专利号:US-2025026768-A1 优先权日:2023-06-30 标题:Method for the synthesis of axially chiral organoboron compounds 发明人:PING YIFAN; CHE CHI-MING 权利人:LABORATORY FOR SYNTHETIC CHEMISTRY AND CHEMICAL BIOLOGY LTD 摘要:A highly efficient and atroposelective Rh-catalyzed [2+2+2] cycloaddition for the synthesis of axially chiral aryboron compounds is developed. The reactions of diynes and alkynylborons smoothly occur in an atom-economical manner, affording a variety of C—B atropisomers in excellent yields and enantioselectivities. The protocol features mild conditions, broad substrate scope, and good functional tolerance. The obtained C—B atropisomers show powerful synthetic applications in terms of producing novel chiral phosphine ligands.
专利号:US-4000169-A 优先权日:1975-01-27 标题 :Asymmetric synthesis of optically active compounds 发明人:CHAN KA-KONG; SAUCY GABRIEL 权利人:HOFFMANN LA ROCHE 摘要:Asymmetric synthesis of optically active 3,7,11-trimethyl-dodecan-1-ol, an intermediate for producing optically active vitamin E, from isovaleraldehyde or prenal including intermediates in this synthesis.
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-4160865-A 优先权日:1975-01-27 标题:Asymmetric synthesis 发明人:CHAN KA-KONG; SAUCY GABRIEL 权利人:HOFFMANN LA ROCHE 摘要:Asymmetric synthesis of optically active 3,7,11-trimethyl-dodecan-1-ol, an intermediate for producing optically active vitamin E, from isovaleraldehyde or prenal including intermediates in this synthesis.
专利号:US-8674119-B2 优先权日:2010-07-16 标题 :Chemical processes for the manufacture of substituted benzofurans 发明人:FLYNN BERNARD LUKE 权利人:FLYNN BERNARD LUKE; BIONOMICS LTD 摘要:The present invention relates to the scaled-up synthesis of biologically active compounds which display useful therapeutic activity in treating proliferative disorders. In particular the invention relates to process methods for the kilogram scale synthesis of a particular class of substituted benzofuran tubulin polymerisation inhibitors.
专利号:US-3959322-A 优先权日:1960-09-22 标 题:Synthesis of 13-alkyl-gon-4-ones 发明人:HUGHES GORDON ALAN; SMITH HERCHEL 权利人:SMITH HERCHEL 摘要:The preparation of 13-methylgon-4-enes and novel 13-polycarbonalkylgon-4-enes by a new total synthesis is described. 13-Alkylgon-4-enes having progestational, anabolic and androgenic activities are prepared by forming a tetracylic gonane structure unsaturated in the 1,3,5(10),9(11) and 14-positions, selectively reducing in the B- and C-rings, and converting the aromatic A-ring compounds so-produced to gon-4-enes by Birch reduction and hydrolysis.