Cyanuric chloride/sodium borohydride: a new reagent combination for reductive opening of 4,6-benzylidene acetals of carbohydrates to primary alcohols
作者:Madhubabu Tatina、Syed Khalid Yousuf、Subrayashastry Aravinda、Baldev Singh、Debaraj Mukherjee
DOI:10.1016/j.carres.2013.09.003
日期:2013.11
combination with cyanuric chloride (TCT) has been used to obtain 6-hydroxy-4-benzyl ether derivatives from 4,6-benzylidene acetals of carbohydrates. The nature of hydride donor determines the regioselectivity of acetal opening. High regioselectivity, scope for using a broad range of substrates, functional group tolerance, mild reaction conditions, easy handling process, inexpensive reagents and wide application
在第一个这样的例子中,NaBH4与氰尿酰氯(TCT)的结合已用于从碳水化合物的4,6-亚苄基乙缩醛中获得6-羟基-4-苄基醚衍生物。氢化物供体的性质决定了缩醛开口的区域选择性。高区域选择性,广泛的底物使用范围,官能团耐受性,温和的反应条件,易于处理的过程,廉价的试剂和广泛的应用,标志着新开发的试剂系统的优势。