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Ring opening of 2,2,4,6,6-pentachloro-4-fenyldimedone affording an α,α-dichloro-γ-butyrolactone

✍ Scribed by L. De Buyck; H. De Pooter; N. Schamp

Book ID
101763221
Publisher
Wiley (John Wiley & Sons)
Year
2010
Weight
128 KB
Volume
97
Category
Article
ISSN
0037-9646

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✦ Synopsis

An a,a-Dichloro-y-butyrolactone 4 was formed after ring opening of 2,2,4,6,6-pentachloro-4-fenyldimedone w%h NaOAc-HOAc in aqueous dioxane. The ring opening in methanol gave a 6-ketoester 5 which was cyclised with Na2C03

to afford the cyclic enol ether a.

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