Mechanistic insights into Brønsted acid-induced nucleophilic substitution of aliphatic imidazole carbamate with halide ions
作者:Mirza A. Saputra、Rashel L. Forgey、Jeffrey L. Henry、Rendy Kartika
DOI:10.1016/j.tetlet.2015.01.098
日期:2015.3
interesting reactivity of imidazole carbamate towards nucleophilic substitution with halide ions under Brønsted acidic conditions. Depending upon reaction conditions, halide ions could readily attack the carboxyl position and trigger decarboxylative alkyl halide formation. Alternatively, halide ions were also found to competitively undergo nucleophilic acyl substitution, which ultimately results in the
在本文中,我们报道了在布朗斯台德酸性条件下,氨基甲酸咪唑对卤离子进行亲核取代的有趣反应性。取决于反应条件,卤离子可以容易地攻击羧基位置并触发脱羧烷基卤的形成。或者,还发现卤离子竞争性地经历亲核酰基取代,最终导致生成碳酸盐二聚产物。