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A selective synthesis of 3-alkynl perflouroalkyl ketones by the trifluoroborane etherate mediated 1,4-addition reaction of (1-alkynyl)diisopropoxyboranes to α,β-unsaturated ketones

✍ Scribed by Ei-ichi Takada; Shoji Hara; Akira Suzuki

Publisher: John Wiley and Sons
Year: 1992
Tongue: English
Weight: 323 KB
Volume: 3
Category: Article
ISSN: 1042-7163
DOI: 10.1002/hc.520030506

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✦ Synopsis

A variet-y of3-alkynyl perfluoroaikyi ketones were prepared by a trifluoroborane etherate mediated 1,4-addition reaction of ( I -alkynyl)diisopropoxyboranes to a,p-unsaturated ketones substituted by a perfltloroalkyl group. The undesired side reaction, such as 1,2-addition of alkynyl groups, could be avoided completely and the products were obtained in high yields.

Dedicated to Professor Yao-Zeng Huang on the occasion of his eightieth birthday.

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