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A new method for the preparation of 1,3-dilithiopropyne: an efficient synthesis of homopropargyl alcohols

✍ Scribed by Jorge A Cabezas; Albán R Pereira; Adam Amey

Publisher
Elsevier Science
Year
2001
Tongue
French
Weight
87 KB
Volume
42
Category
Article
ISSN
0040-4039

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✦ Synopsis

Controlled dilithiation of propargyl bromide with two equivalents of n-butyllithium, in the presence of TMEDA, produces the operational equivalent of the dianion 1,3-dilithiopropyne. The latter reacts efficiently with aldehydes and ketones to produce homopropargyl alcohols in a single step route and in high yields.

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