Cyclic and acyclic sulfonimides in reactions with Rh (II)-ketocarbenoids: a new access to chemoselective O-functionalization of the imidic carbonyl groups

…, J Sieler, L Rodina, B Schulze, V Nikolaev

Index: Nikolaev, Vsevolod; Hennig, Lothar; Sieler, Jochim; Rodina, Ludmila; Schulze, Barbel; Nikolaev, Valerij Organic and Biomolecular Chemistry, 2005 , vol. 3, # 22 p. 4108 - 4116

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Citation Number: 17

Abstract

Catalytic decomposition of diazoacetylacetone, diazoacetoacetic, diazomalonic, and diazoacetic esters using dirhodium tetraacetate in the presence of isothiazol-3 (2H)-one 1, 1- dioxides and a number of N-(arenesulfonyl) carboxamides in solutions of methylene chloride or dichloroethane gives rise to O-alkylation of the imidic carbonyl groups by Rh (II)- carbenoids and the formation of O-alkylimidates as the final products. The reaction ...

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