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Original Articles

Wittig Olefination Using Phosphonium Tetraphenylborate in the Absence of Additional Base

, &
Pages 1802-1810 | Received 03 Nov 2013, Accepted 06 Mar 2014, Published online: 16 Oct 2014
 

GRAPHICAL ABSTRACT

Abstract

The thermal decomposition of (substituted methyl)triphenylphosphonium tetraphenylborates, which can also be generated in situ from the corresponding phosphonium halide and NaBPh4, with an aldehyde affords olefins in 22–100% yields. This Wittig olefination does not need use additional base to form phosphorus ylide, and is highly tolerant of benzoic acid.

Additional information

Funding

We thank the National Natural Science Foundation of China (No. 21272170) for their financial support of our program.

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