Ring opening and closing reactions of imidazoles and other 1,3-diazaheterocycles with vinyl chloroformate and phenyl chloroformate
作者:R.F. Pratt、K.K. Kraus
DOI:10.1016/s0040-4039(01)92925-9
日期:1981.1
Treatment of imidazole and benzimidazole with vinyl chloroformate or phenyl chloroformate in weakly alkaline aqueous solution leads to their conversion into the corresponding imidazol-2-ones; in weakly acidic solutions these chloroformates convert adenine into isoguanine, 6-methylaminopurine into 1-methylisoguanine and pyrimidine into an acyclic product.
在弱碱性水溶液中用氯甲酸乙烯酯或氯甲酸苯酯处理咪唑和苯并咪唑可导致它们转化为相应的咪唑-2-酮。在弱酸性溶液中,这些氯甲酸酯将腺嘌呤转化为异鸟嘌呤,将6-甲基氨基嘌呤转化为1-甲基异鸟嘌呤,将嘧啶转化为无环产物。