A comparative study on the acylatiion fo pyrrole by utilizing 2-substituted 1,3-benzodithiolium tetrafluoroborates instead of 2-substituted 1,3-benzoxathiolium tetrafluoroborates has been accomplished. The use of 2-substituted 1,3-benzodithiolium tetrafluoroborates proved to be more convenient since it gives higher yields of 2-acylpyrroles (58-90%) and appears of larger applicability for the preparation of symmetrical and unsymmetrical 2,4-diacylpyrroles which were obtained in most cases in quantitative yields.

2-Substituted 1,3-Benzodithiolium Tetrafluoroborates as Useful Acylating Agents of Pyrrole

BARBERO, Margherita;CADAMURO, Silvano;DEGANI, Jacopo;DUGHERA, Stefano;FOCHI, Rita;GATTI, Antonella;PRANDI, Cristina
1990

Abstract

A comparative study on the acylatiion fo pyrrole by utilizing 2-substituted 1,3-benzodithiolium tetrafluoroborates instead of 2-substituted 1,3-benzoxathiolium tetrafluoroborates has been accomplished. The use of 2-substituted 1,3-benzodithiolium tetrafluoroborates proved to be more convenient since it gives higher yields of 2-acylpyrroles (58-90%) and appears of larger applicability for the preparation of symmetrical and unsymmetrical 2,4-diacylpyrroles which were obtained in most cases in quantitative yields.
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MARGHERITA BARBERO; S. CADAMURO; IACOPO DEGANI; STEFANO DUGHERA; RITA FOCHI; ANTONELLA GATTI; CRISTINA PRANDI
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2318/3277
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