The present invention provides a method of making an imidazole-2-thione which comprises the steps of reacting a vicinal diamine with a compound having a thiocarbonyl moiety and oxidizing the resulting reaction product to obtain said imidazole-2-thione.
[EN] METHOD OF MAKING IMIDAZOLE-2-THIONES<br/>[FR] MÉTHODE DE SYNTHÈSE D'IMIDAZOLE-2-THIONES
申请人:ALLERGAN INC
公开号:WO2006062890A1
公开(公告)日:2006-06-15
[EN] The present invention provides a method of making an imidazole-2-thione which comprises the steps of reacting a vicinal diamine with a compound having a thiocarbonyl moiety and oxidizing the resulting reaction product to obtain said imidazole-2-thione. [FR] La présente invention a pour objet une méthode de synthèse d'imidazole-2-thione qui comprend les étapes suivantes : réaction d'une diamine vicinale avec un composé présentant un groupement thiocarbonyle, et oxydation du produit de réaction résultant pour obtenir ladite imidazole-2-thione.
New methods for the preparation of aryl 2-iminoimidazolidines
作者:Daniel H. O’Donovan、Isabel Rozas
DOI:10.1016/j.tetlet.2012.06.042
日期:2012.8
A divergent strategy for the synthesis of 1-aryl- and 2-aryl-2-iminoimidazolidines is presented. Cyclization of N-Boc-N′-aryl-N′′-(2-hydroxyethyl)guanidines in the presence of methanesulfonyl chloride and triethylamine or sodium hydride at 0 °C affords the corresponding 2-iminoimidazolidines in good yields.