Highly Chemoselective Alkylation of Acetals Using TESOTf-2,4,6-Collidine-Gilman Reagent Combination
作者:Hiromichi Fujioka、Yasuyuki Kita、Takashi Okitsu、Yoshinari Sawama、Takuya Ohnaka
DOI:10.1055/s-2006-951509
日期:2006.11
A new alkylation method of acetals has been developed by the reaction of the cationic intermediates, obtained by TESOTf-2,4,6-collidine treatment of acetals, followed by a Gilman reagent. The feature of the method is high chemoselectivity, which could not be attained by previously reported methods. Reaction proceeds under weakly basic conditions that acid-labile functional groups can tolerate.
通过TESOTf-2,4,6-可力丁处理缩醛得到的阳离子中间体和吉尔曼试剂反应,开发了一种新的缩醛烷基化方法。该方法的特点是化学选择性高,这是以前报道的方法无法达到的。反应在酸不稳定官能团可以耐受的弱碱性条件下进行。