✦ LIBER ✦

ChemInform Abstract: A Diastereoselective Synthesis of Phosphorylated Dihydro-1H-pyrazoles from Dialkyl Phosphites, Acetylenic Esters, and Hydrazonoyl Chlorides.

✍ Scribed by Issa Yavari; Gholamhossein Khalili

Publisher: John Wiley and Sons
Year: 2010
Weight: 24 KB
Volume: 41
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.201046118

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✦ Synopsis

Abstract

The simple procedure affords the title compounds as single diastereomers.

📜 SIMILAR VOLUMES

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One-Pot Synthesis of Functionalized 3-Ar

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## Abstract 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.

ChemInform Abstract: A Regioselective Sy

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ChemInform Abstract: A Convenient and Hi

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ChemInform Abstract: Oxidative Ring-Open

ChemInform Abstract: Oxidative Ring-Opening of rel-(2R,3R,5S)-5-Aryl-2-benzoylamino-6,7-bis (methoxycarbonyl)-2,3-dihydro-1-oxo-3-phenyl-1H,5H-pyrazolo [1,2-a]-pyrazoles. Synthesis of rel-(2R,3R)-3-Phenyl-3- [5-aryl-3,4-bis(methoxycarbonyl)pyrazolyl-1]alanine Esters.

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