📜三苯基氯硅烷置于硫化氢,三乙胺体系中,用 苯 用作溶剂,化学反应生成三苯基硅烷硫醇 参考文献:Etienne,Bulletin De La Societe Chimique De France,1953,P. 791 标题:Etienne,Bulletin De La Societe Chimique De France,1953,P. 791
专利号:US-2024199569-A1 优先权日:2022-11-30 标 题:Process for the manufacture of inhibitors of kras 发明人:ZHANG YONGDA; CHONG EUGENE; REEVES JONATHAN TIMOTHY; WHITE JADA A H; LEI ZHEN 权利人:BOEHRINGER INGELHEIM INT 摘要:This invention relates to an efficient and enantioselective synthesis of the spiro-compounds of formula (1) as common intermediate, featuring an asymmetric introduction of the all-carbon quaternary centre in high selectivity and a very efficient one-pot procedure for the C2 elongation to generate the spiro-structure.For the all-carbon quaternary centre, a Tsuji-Trost asymmetric allylic alkylation (AAA) process was designed to develop a sustainable procedure with very low catalyst loading, thereby also facilitating the Pd content control in the product, under practically solvent free conditions. Furthermore, multiple synthetic transformations in a one-pot procedure were implemented by using a one-pot procedure either in form of a three-transformation sequence comprising Hydroboration-Alkylation-Dieckmann Condensation to compound of formula (1) or in form of a five-transformation sequence comprising Hydroboration-Alkylation-Dieckmann Condensation-Hydrolysis-Decarboxylation to compound of formula (9).
参考标题:Reactions Of Monodithiolene Tungsten(Vi) Sulfido Complexes With Copper(I) In Relation To The Structure Of The Active Site Of Carbon Monoxide Dehydrogenase 作者:Stanislav Groysman,Amit Majumdar,Shao-Liang Zheng,R. H. Holm |发布日期:2010.2.1 摘要:Reactions Directed At The Synthesis Of Structural Analogues Of The Active Site Of Molybdenum-Containing Carbon Monoxide Dehydrogenase Have Been Investigated Utilizing [wo2S(Bdt)]2− (1) And [wos2(Bdt)]2− (2) And Sterically Hindered [cu(R)L] Or [cu(Ssir′3)2]− As Reactants. All Successful Reactions Of 2 Afford The Binuclear Wvi/cui Products [wo(Bdt)(μ2-S)2Cu(L)]2−/− With L = Carbene (3), Ar*s (4), Ar*
合成参考文献
摘要:Tang, R.-Y., Science of Synthesis: Knowledge Updates, (2024) 1, 346.