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ChemInform Abstract: Regioselective 1,3-Dipolar Cycloadditions of (1Z)-1-(Arylmethylidene)-5,5-dimethyl-3-oxopyrazolidin-1-ium-2-ide Azomethine Imines to Acetylenic Dipolarophiles.

✍ Scribed by Cvetka Turk; Jurij Svete; Branko Stanovnik; Ljubo Golic; Simona Golic-Grdadolnik; Amalija Golobic; Lovro Selic

Publisher: John Wiley and Sons
Year: 2001
Weight: 32 KB
Volume: 32
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.200120097

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✦ Synopsis

Abstract

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.

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Regioselective 1,3-Dipolar Cycloaddition

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✍ Cvetka Turk; Jurij Svete; Branko Stanovnik; Ljubo Golič; Simona Golič-Grdadolnik 📂 Article 📅 2001 🏛 John Wiley and Sons 🌐 German ⚖ 137 KB 👁 1 views

The 5,5-dimethylpyrazolidin-3-one (4), prepared from ethyl 3-methylbut-2-enoate (3) and hydrazine hydrate, was treated with various substituted benzaldehydes 5a ± i to give the corresponding (1Z)-1-(arylmethylidene)-5,5-dimethyl-3-oxopyrazolidin-1-ium-2-ide azomethine imines 6a ± i. The 1,3-dipolar

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