Reaction of<i>N,N</i>-dimethylazidochloromethyleniminium chloride (azidophosgeniminium chloride) with 1,3-dimethyl-4-aminouracils. A new “one pot” synthesis of 3-aryl-(and 3-alkyl)-4,6-dimethyl-5,7-dioxo-1,2,3-triazolo[4,5-<i>d</i>]pyrimidines (8-azatheophyllines)<i>via</i>a diazo group transfer process
作者:Bruno Kokel、Nadia Boussouira
DOI:10.1002/jhet.5570240601
日期:1987.11
N,N-Dimethylazidochloromethyleniminium chloride (azidophosgeniminium chloride) (1) reacts by diazo group transfer with 1,3-dimethyl-4-aryl-(and alkyl)aminouracils 4 to give, under mild “one pot” reaction conditions, a very good yield of 3-aryl-(and 3-alkyl)-4,6-dimethyl-5,7-dioxo-1,2,3-triazolo[4,5-d]pyrimidines (8-azatheophyllines) 8. That reaction proceeds, very likely, through formation of non-isolated
N,N-氯化二甲基叠氮基氯甲基亚硝酸铵(叠氮基光亚甲基氯化铵)(1)与重氮基转移反应与1,3-二甲基-4-芳基-(和烷基)氨基尿嘧啶4反应,在温和的“一锅法”反应条件下得到了非常好的的3-芳基-(和3-烷基)-4,6-二甲基-5,7-二氧-1,2,3-三唑并[4,5- d ]嘧啶(8-茶碱茶碱)8。该反应很可能通过形成非分离的4-亚氨基-5-重氮尿嘧啶6来进行。