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5(4H)-oxazolones. Part XIII. A new synthesis of 4-ylidene-5(4H)-oxazolones by the Stille reaction

✍ Scribed by Egle Maria Beccalli; Francesca Clerici; Maria Luisa Gelmi

Publisher: Elsevier Science
Year: 1999
Tongue: French
Weight: 296 KB
Volume: 55
Category: Article
ISSN: 0040-4020
DOI: 10.1016/s0040-4020(98)01070-9

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✦ Synopsis

4--Chloromethyiene-2-ph~yl-5(4H)-oxazolone 1 was used as the starting material for the preparation of a series cf 4-ylideneoxazolones 3 by the Stille reaction. When compound 1 was reacted with organostannanes 2 in the presence of the palladium caUdyst, OXaZ~OB~ 3 w~re oblailgd in good yields in mild reaction conditions. @

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