Yne-Allenes from 1-Bromoallenes and Trimethylstannylacetylenes via Palladium-Mediated C–C Coupling Reactions
作者:Rolf W. Saalfrank、Martin Haubner、Christian Deutscher、Walter Bauer
DOI:10.1002/(sici)1099-0690(199909)1999:9<2367::aid-ejoc2367>3.0.co;2-9
日期:1999.9
provided a convenient route for the synthesis of the conjugated yne-allenes 7 or the diastereomeric yne-diallenes, meso-9 and (R,R)/(S,S)-9. Analogously to 7, the phosphorylyne-allenes 14 were also prepared under Stille conditions, starting from the phosphorylallenes 12 and propargylstannane 6a. Alternatively, yne-allenes 17 and 18 were obtained from hexadiynol 16 with orthoester 2b or diethoxychlorophosphane
溴丙炔 3 与甲炔基炔烃 6 或二甲炔基炔烃 8 的斯蒂勒交叉偶联为合成共轭炔-丙炔-7 或非对映异构炔-二丙炔、meso-9 和 (R,R)/(S, S)-9。与 7 类似,磷酰炔-丙二烯 14 也在斯蒂勒条件下制备,从磷酰丙二烯 12 和炔丙基锡烷 6a 开始。或者,炔-丙二烯17和18是通过[3.3]-和[2.3]-sigmatropic重排从己二炔醇16与原酸酯2b或二乙氧基氯膦13a获得的。