Selective alkylation of cyclopentadiene

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United States of America Patent

PATENT NO 11708380
SERIAL NO

17507004

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Abstract

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Provided is a process for the mono-alkylation of cyclopentadiene, utilizing a cyclopentadiene magnesium halide and a metal salt of an alkyl or aryl sulfonate as co-reactant with an alkyl halide alkylating reactant. The process provides facile methodology for the mono-alkylation of cyclopentadiene, with conversions as high as about 96 percent and selectivity for mono-alkylation (over higher level alkylation, such as di- or tri-) as high as about 99%.

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Patent Owner(s)

Patent OwnerAddress
ENTEGRIS INC129 CONCORD ROAD BILLERICA MA 01821

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hinkle, Paul Wallingford, US 1 0
Laneman, Scott A Vernon Hills, US 26 76
Weidner, Victoria Media, US 2 0

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