Journal of Heterocyclic Chemistry

Synthesis of 3H??pyrazol??3??one derivatives containing a 9H??thioxanthene ring

I Okabayashi

Index: Okabayashi, Ichizo Journal of Heterocyclic Chemistry, 1982 , vol. 19, p. 437 - 438

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Citation Number: 6

Abstract

Abstract 2, 4-Dihydro-5-methyl-2-phenyl-4-(9H-thioxanthen-9-yl)-3H-pyrazol-3-one (3) was prepared by condensing 9H-thioxanthen-9-ol (1) with 2, 4-dihydro-5-methyl-2-phenyl-3H- pyrazol-3-one (2), or by cyclizing ethyl α-acetyl-9H-thioxanthene-9-acetate (4) with