409060-10-2Relevant articles and documents
Formation of unsymmetrical 2-(diacylmethylene)-2,3-dihydro-1H-benzimidazoles during acidolysis of 1-benzoyl-2-(β-benzoyloxy-β-phenylvinyl)-1H-benzimidazole
Dzvinchuk,Lozinskii
, p. 554 - 559 (2001)
The reaction of 1-benzoyl-2-(β-benzoyloxy-β-phenylvinyl)-1H-benzimidazole with carboxylic acids was investigated. A convenient method was developed for the synthesis of unsymmetrical 2-(diacylmethylene)-2,3-dihydro-1H-benzimidazoles. 2-(4-Pyrazolyl)-1H-benzimidazoles were obtained by the reaction of 2-(benzoylformylmethylene)-2,3-dihydro-1H-benzimidazole with hydrazine.