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ChemInform Abstract: Cycloaddition Reactions of N-(Cyanomethyl)pyridinium Ylides with 2,2-Dihydropolyfluoroalkanoates.

✍ Scribed by Xue-chun Zhang; Wei-yuan Huang

Publisher
John Wiley and Sons
Year
2010
Weight
31 KB
Volume
30
Category
Article
ISSN
0931-7597

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✦ Synopsis

Cycloaddition Reactions of N-(Cyanomethyl)pyridinium Ylides with 2,2-Dihydropolyfluoroalkanoates. -The ylides (I) and (VI) are reacted with polyfluorinated alkanoates under basic conditions to give the corresponding indolizines bearing both a fluoroalkyl and a cyano group. The 3-substituted ylide (VI) furnishes 4-and 6-substituted indolizines. This regioselectivity is different from that found with photocycloadditions as reported by others. -

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