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Reaction of carbon dioxide with trialkylalkynyl borates — a novel method for the synthesis of stereospecific α,β-unsaturated acids

✍ Scribed by Deng Min-zhi; Tang Yong-ti; Xu Wei-hua

Publisher
Elsevier Science
Year
1984
Tongue
French
Weight
136 KB
Volume
25
Category
Article
ISSN
0040-4039

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✦ Synopsis

Carboxylation of lithium trialkylalkynylborate can take place under favourable conditions.

Protonation of the reaction product yields (Z)-a,P-unsaturated acid.

Quite a variety of electrophiles have been used in reaction with alkynylborates. Among these are carboxylic acids, iodinel, simple alkylating agents, such as alkyl halides or tosylates2, metal stablized cations 3 , acid pyridinium saits 4 5 6

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