Simplified Preparation of Trialkylvinylsilanes<i>via</i>the Silyl-Heck Reaction Utilizing a Second Generation Catalyst
作者:Jesse R. McAtee、Sarah B. Krause、Donald A. Watson
DOI:10.1002/adsc.201500436
日期:2015.7.6
bis(3,5‐di‐tert‐butylphenyl)(tert‐butyl)phosphine, for the preparation of allylsilanes using the silyl‐Heck reaction. We now show that this new ligand also provides superior reactivity in the preparation of vinylsilanes from styrene derivatives. For the first time, this new ligand provides exceptionally high yields of trialkylvinylsilanes using the widely available palladium pre‐catalyst, tris(dibenzy
最近,我们报道了第二代配体,双(3,5-二叔丁基苯基)(叔丁基)膦,用于使用甲硅烷基-Heck反应制备烯丙基硅烷。现在我们表明,这种新的配体在由苯乙烯衍生物制备乙烯基硅烷中也提供了优异的反应性。该新型配体首次使用广泛可用的钯预催化剂三(二亚苄基丙酮)二钯(0)[Pd 2(dba)3 ]提供了极高的三烷基乙烯基硅烷收率。最后,我们证明了这种新的催化剂体系能够形成装饰更高级的全碳取代乙烯基硅烷,这些硅烷已显示出在氧化和交叉偶联反应中具有优异的反应活性。