作者:Maxwell L. Bullpitt、William Kitching
DOI:10.1016/s0022-328x(00)88290-x
日期:1972.1
benzene or carbon tetrachloride solution. When R cis- or trans-2-butenyl(crotyl), 2-propynyl or 1,2-propadienyl (allenyl), the rearranged α-methallyl, allenyl or 2-propynyl thiocyanates, respectively, are produced. The reactions are quantitative as judged by direct PMR observations. When R possesses only moderate reactivity towards electrophiles, e.g., CH3 as in (CH3)4Sn, polymerisation of (SCN)2
已证明许多类型的(CH 3)3 SnR和较小程度地为(C 6 H 5)3 SnR的四有机锡化合物,其中R是通常容易被亲电子试剂裂解的基团,容易与硫氰酸根反应(SCN)2,在苯或四氯化碳溶液中。当R 4顺式或反式-2-丁烯基(巴豆基),2-丙炔基或1,2-丙二烯基(烯丙基)时,分别产生重排的α-甲基烯丙基,烯丙基或2-丙炔基硫氰酸酯。通过直接PMR观察判断,反应是定量的。当R仅对亲电子试剂具有中等反应性时,例如CH 3如在(CH 3)4 Sn中,(SCN)2的聚合比裂解更快。