A New Protocol for the Synthesis of N(1)-Unsubstituted 2-Substituted 2-Imidazolines
作者:Raymond C.F. Jones、Paschalis Dimopoulos
DOI:10.1016/s0040-4020(00)00108-3
日期:2000.3
Lateral metallation at C-2(α) of 1-tert-butoxycarbonyl-2-methyl-2-imidazoline followed by reaction with a range of C-electrophiles and deprotection with TFA reliably affords N(1)-unsubstituted 2-substituted 2-imidazolines; P- or Se-electrophiles lead to 2-alkenyl-2-imidazolines via Wadsworth–Emmons or selenoxide elimination protocols.
1-叔丁氧基羰基-2-甲基-2-咪唑啉在C-2(α)上的侧向金属化反应,然后与一系列C-亲电子试剂反应,并用TFA脱保护,可可靠地提供N(1)-未取代的2-取代的2-咪唑啉 P或Se亲电试剂通过Wadsworth-Emmons或亚硒酸盐消除方案生成2-烯基-2-咪唑啉。