Un nouvel aspect de la reactivite des trihalogenomethyltrialkyletains: l'addition aux aldehydes
作者:Christian Furet、Christian Servens、Michel Pereyre
DOI:10.1016/s0022-328x(00)89386-9
日期:1975.12
Trichloromethyl- and tribromomethyl-tributyltin give adducts with aldehydes. On acidolysis the corresponding trichloromethyl- and tribromomethylcarbinols are obtained in good yields. The stereochemistry of the addition reaction with hydratropic aldehyde was investigated and the substituent effects were determined by means of competitive experiments with substituted benzaldehydes. The inefficiency of
三氯甲基-和三溴甲基-三丁基锡与醛形成加合物。在酸解中,以良好的产率获得相应的三氯甲基和三溴甲基甲醇。研究了与亲水醛加成反应的立体化学,并通过竞争性实验确定了取代苯甲醛的取代基效果。自由基反应引发剂和抑制剂的效率低下,再加上不存在重排产物,似乎排除了自由基的作用机理。该反应可能是离子性的,并且羰基上三卤甲基的亲核攻击。