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Novel heterocycles: a convenient synthesis of pyrrolo[2,3-d]pyrazole; cycloaddition reaction of N-aryl(methyl)pyrrol-2,3-diones to diazomethane and olefins

โœ Scribed by Hisham A. Abd El-Nabi


Book ID
104207473
Publisher
Elsevier Science
Year
1997
Tongue
French
Weight
518 KB
Volume
53
Category
Article
ISSN
0040-4020

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In the presence of a catalytic amount of triphenylphosphine, methyl 2,3-butadienoate smoothly reacted with aromatic or heteroaromatic N-tosylimines at room temperature to afford the [3+2] cycloaddition product in excellent yield.