Synthesis, characterization of some 1-(2-hydroxy-phenyl)-3-(1-phenyl-3-thiophen-2-yl-1H-pyrazol-4-yl)-propenone, 3-chloro-2-(1-phenyl-3-thiophen-2-yl-1H-pyrazol-4-yl)-chromon-4-one and 2-(1′-phenyl-3′-thiophen-2-yl-3,4-dihydro-2H,1H′-[3,4]bipyrazol-5-yl)-phenol

被引：0

作者：

Halnor, VB ^{[1
]}

Joshi, NS ^{[1
]}

Karale, BK ^{[1
]}

Gill, CH ^{[1
]}

机构：

[1] SSGM Coll, PG Dept Chem, Kopargaon 423601, Ahmednagar, India

来源：

HETEROCYCLIC COMMUNICATIONS | 2005年 / 11卷 / 02期

关键词：

D O I：

暂无

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Base catalyzed condensation of 1 with 2 gives compound 3 [1-(2-hydroxy-phenyl)-3-(1-phenyl-3-thiophen-2-yl- 1H-pyrazol-4-yl)-propenone]. 3 on oxidative cyclization with DMSO-CUCl2 gives 3-chloro-2-(1-phenyl-3-thiophen-2-yl- 1H-pyrazol-4-yl)-chromon-4-one 4. 3 on condensation with hydrazine hydrate gives 2-(1'-phenyl-3'-thiophen-2-yl-3,4-dihydro-2H, 1H'-[3,4]bipyrazol-5-yl)-phenol 5. The products 3, 4 and 5 were characterized by IR, H-1 NMR and mass spectroscopy.

引用

页码：167 / 172

页数：6

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