E??and Z??isomerism of 2??acetylthiophene oximes

S Conde, C Corral, J Lissavetzky

Index: Conde, Santiago; Corral, Carlos; Lissavetzky, Jaime Journal of Heterocyclic Chemistry, 1985 , vol. 22, p. 301 - 304

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Citation Number: 9

Abstract

Abstract A study on the oximation of a number of 2-acetylthiophenes in order to ascertain the validity of contradictory results previously described is reported. The fact that the steric hindrance is smaller in 2-acetylthiophenes unsubstituted at position-3 than in acetylbenzenes allows in these cases the formation of Z oximes, which even can predominate on the E oximes in the case of a+ M substitution at position-5. In the paper is ...