Abstract:
The work describes a detailed account of the Lewis acid-catalyzed preparation of structurally
variant alkoxymethyl halides. A series of Lewis acids with different halogenating agents are evaluated
for the cleavage of bis-alkoxymethanes, where several readily available Lewis acids were found to
exhibit high catalytic potential. SOCl2 with MgCl2 was found to be one of the best combinations for the
facile and efficient preparation of structurally diverse alkoxymethyl halides under solvent-free conditions.
The efficacy of the methodology was established to obtain a wide range of mixed acetals through
alkoxymethylation of phosphorus, sulfur, nitrogen, and oxygen containing nucleophiles. The present
procedure has significant advantages including simplicity, generality, rapidity, and availability of reagents.
摘要:本文详细介绍了路易斯酸催化制备结构异构的烷氧甲基卤代物的过程。评估了一系列具有不同卤化试剂的路易斯酸对双烷氧甲烷的裂解,发现几种易得的路易斯酸表现出高催化潜力。SOCl2与MgCl2的组合被发现是在无溶剂条件下制备结构多样的烷氧甲基卤代物最好的选择之一。该方法的有效性已被证明,可以通过烷氧甲基化磷、硫、氮和含氧亲核试剂来获得广泛的混合缩醛。本方法具有简单性、普适性、快速性和试剂的可获得性等显著优点。