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Lanthanoid-catalyzed ring-opening reaction of epoxides with acyl halides

โœ Scribed by Yuki Taniguchi; Shintaro Tanaka; Tsugio Kitamura; Yuzo Fujiwara

Publisher
Elsevier Science
Year
1998
Tongue
French
Weight
149 KB
Volume
39
Category
Article
ISSN
0040-4039

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โœฆ Synopsis

A6struct; Eu(dpm), [dpm: dipivaloylmetbanate] catalyzes the ring-opening reaction of epoxides with acyl halides affording the correspondii 2-habakyl esters.

The stewochemical course was confirmed as frms-addition in the case of the reaction of cyclohexene oxide. 0 I 998 Elsevier Smnce Ltd.

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Lanthanoid-Catalyzed Ring-Opening Reaction of Epoxides with Acyl Halides. -Eu(dpm) 3 is found to be the best reagent for ring-opening reaction of epoxides with acyl halides. In the case of cyclohexene oxide (I), a trans addition produces (III) stereoselectively. Propylene oxide affords a mixture of

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