Synthesis and study of chlorosubstituted 4-aroyl and 4-alkoyl-pyrazolines, pyrazoles and their effect on some flowering plants

JD Mahale, SC Manoja, NG Belsare…

Index: Mahale, Jaishree D.; Manoja; Belsare; Rajput Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 2010 , vol. 49, # 4 p. 505 - 511

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Citation Number: 6

Abstract

Abstract: Some new chlorosubstituted 4-aroyl/alkoylpyrazolines 5a, b and 4- aroyl/alkoylpyrazoles 7a, b have been synthesized by condensation of 1-(2′-hydroxy-3′- 5′-dichlorophenyl)-3-aryl/alkyl-1-3-propanedione 3a, b and valeraldehyde by Baker- Venkatraman transformation of corresponding aroyl/alkoyloxyacetophenones. Aroyl/ Alkoyloxyacetophenones 2a, b undergo intramolecular Claisen condensation to form 1-(2 ...