Reactivity of Hydroxy and Amino Derivatives of 2??Phenyl??1H??imidazoline and 2??Phenyl??1H??imidazole toward Isocyanates: Synthesis of Appropriate Carbamates and …

P Pařík, J Jansa, S Holešová, A Marek…

Index: Parik, Patrik; Jansa, Josef; Holesova, Sylva; Marek, Ales; Klimesova, Vera Journal of Heterocyclic Chemistry, 2013 , vol. 50, # 4 p. 903 - 910

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Abstract

Abstract Reactivity of 2-(4-hydroxyphenyl)-1H-imidazoline and 2-(4-hydroxyphenyl)-1H- imidazole toward substituted phenyl isocyanates was studied. When mentioned imidazoline was treated with 2.5 equiv of substituted phenyl isocyanate, three N, O-dicarboxamides were prepared (substituents are H, 4-NO 2, and 4-CH 3). Subsequently, N, O-diacetylated 2-(4- hydroxyphenyl)-1H-imidazoline was prepared and selective deprotection method was ...