Entegris, Inc.
SELECTIVE ALKYLATION OF CYCLOPENTADIENE

Last updated:

Abstract:

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%.

Status:
Application
Type:

Utility

Filling date:

21 Oct 2021

Issue date:

28 Apr 2022