作者:Zhongping Huang、John Reilly、Ronald Buckle
DOI:10.1055/s-2007-973890
日期:2007.4
is used to activate carboxylic acids to generate triacyloxyboranes. The triacyloxyboranes can be effectively reacted with various nucleophiles including alkylamines, arylamines, hydrazides, alcohols and phenols at reflux in toluene to provide the corresponding amides and esters in excellent yield. Aliphatic carboxylic acids are selectively esterified in the presence of aromatic carboxylic acids under
硼烷-四氢呋喃络合物或硼烷-甲基-硫化物络合物用于活化羧酸以生成三酰氧基硼烷。三酰氧基硼烷可以与包括烷基胺、芳胺、酰肼、醇和酚在内的各种亲核试剂在甲苯中回流反应,以优异的收率提供相应的酰胺和酯。在芳族羧酸的存在下,在硼烷条件下,脂肪族羧酸被选择性地酯化。