The hydrostannation, carbocupration, and carbozincation reactions of fluorinated alkynylphosphonates were investigated. The hydrostannation reaction proceeded smoothly without an additive (e.g., BEt3/O2, AIBN) to give the corresponding vinylstannanes in a highly regio- and stereoselective manner. Various cuprates, prepared from organolithium, Grignard, and organozinc reagents, could participate nicely in the carbocupration reactions, the corresponding adducts were obtained in good to high yields. Dialkylzinc reagents reacted smoothly with the alkynylphosphonates even in the absence of copper salt to afford the corresponding adducts in good yields.
对
氟化烷炔
磷酸酯的氢
锡化、碳
铜化和碳
锌化反应进行了研究。氢
锡化反应在没有添加剂(如 BEt3/O2, AIBN)的情况下顺利进行,以高度区域选择性和立体选择性生成相应的
乙烯基锡化物。多种
铜盐,从
有机锂、格林尼亚试剂和
有机锌试剂制备的,可以很好地参与碳
铜化反应,相应的加成产物以良好至高的产率获得。双烷基
锌试剂即使在没有
铜盐的情况下也能与烷炔
磷酸酯顺利反应,获得相应的加成产物,产率良好。