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One‐Pot Synthesis of Functionalized 3‐Aryl‐1‐phenyl‐1 H ‐pyrazoles from Hydrazonoyl Chlorides and Acetylenic Esters in the Presence of Ph 3 P
Author(s) -
Yavari Issa,
Khalili Gholamhossein,
Mirzaei Anvar
Publication year - 2010
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.200900246
Subject(s) - chemistry , aryl , yield (engineering) , medicinal chemistry , organic chemistry , materials science , metallurgy , alkyl
The zwitterionic 1 : 1 intermediates generated by addition of Ph 3 P to acetylenic esters is trapped by 1‐[(aryl)chloromethylene]‐2‐phenylhydrazines (= N ‐phenylarenecarbohydrazonoyl chlorides) to yield functionalized 3‐aryl‐1‐phenyl‐1 H ‐pyrazoles in good yields.
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