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Microwave accelerated SN2′ substitution of Baylis–Hillman acetates: A comparative study of conventional heating versus microwave irradiation

✍ Scribed by J.S. Yadav; B.V. Subba Reddy; A.K. Basak; A. Venkat Narsaiah

Book ID
104057239
Publisher
Elsevier Science
Year
2007
Tongue
English
Weight
175 KB
Volume
274
Category
Article
ISSN
1381-1169

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✦ Synopsis

Baylis-Hillman acetates undergo a rapid S N 2 allylic substitution with ethyl (triphenyl phosphoranylidene) acetate under microwave irradiation to afford ethyl 5-aryl or alkyl-(E)-pent-4-enoates in high yields with high (E)-stereoselectivity. The reaction rates and yields are significantly improved by employing microwave irradiation. A comparative study under thermal conditions and microwave irradiation is also described.

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