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Phosphorus, Sulfur, and Silicon and the Related Elements Volume 47, 1990 - Issue 3-4
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Original Articles

STUDIES ON THE VILSMEIER-HAACK REACTION. PART IV. SYNTHESIS AND REACTION OF SOME 3-METHY L-l-PHENYL-4-(ACETY L; IMINOACETYL AND THIOACETYL)-2-PYRAZOLIN-5-THIONE

Ibrahim M. A. Awad Chemistry Department, Faculty of Science, Assiut University, Assiut, Egypt
&
Khairy M. Hassan Chemistry Department, Faculty of Science, Assiut University, Assiut, Egypt
Pages 311-317 | Received 07 Mar 1989, Published online: 23 Sep 2006
 
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Abstract

Three derivatives of 5-thiopyrazolone (3-5) have been synthesized. The 3-methyl group in each of these derivatives has been found to undergo diformylation by Vilsmeier reagent to give the corresponding aminoacroleins (6-8). Treatment of 6-8 with some reagents affords the related thiopyrazolone derivatives (12-29) with different heterocyclic systems at the 3-position.

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Related Research Data

Synthesis, Characterization, and Crystal Structure of a Phenanthroindolizine Skeleton from 18-Acetamino-7-Oxo-Dehydroabietane by Vilsmeier-Haack Reaction
Source: (:unav)
STUDIES ON THE VILSMEIER-HAACK REACTION: PART XIII. NOVEL HETEROCYCLO-SUBSTITUTED 4,4′-bi-PYRAZOLYL DITHIOCARBAMATE DERIVATIVES
Source: Informa UK Limited
The Vilsmeier Reaction of Non‐Aromatic Compounds
Source: John Wiley & Sons, Inc.

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