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Periselectivity in electrocyclic processes: [2+2] vs. [4+2] selectivity in the cycloaddition reaction between ketenes and a, b - unsaturated imines

Lecea, Begoña and Arrieta, Ana and Roa, Guillermo and Cossio, Fernando P. (1997) Periselectivity in electrocyclic processes: [2+2] vs. [4+2] selectivity in the cycloaddition reaction between ketenes and a, b - unsaturated imines. Formula. Cuadernos de Ciencias Físico-Químicas y Matemáticas (4). pp. 91-109. ISSN 1137-4411

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Official URL: http://www.euskomedia.org/analitica/202

Abstract

The aim of the present work is to explore computationally the behaviour of several model ketenes and 1-azadienes in order to develop a general model which could eventually explain the variables governing the formation of [2+2] an [4+2] cycloadducts. Since the electrocyclic step determines the outcome of the reaction, we well focus on the transition states compatible with the electrocyclic process. Solvent effect has been taken into account using the Onsager model.

Item Type:Article
Uncontrolled Keywords:Física química; Procesos electrocíclicos; Física
Subjects:Physics
ID Code:6553
Last Modified:11 May 2011 16:39
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