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A simple microwave-assisted preparation of 2-bromo-1-alkenes from 1-alkynes using the LiBr–TMSCl–TEAB reagent system

Author:
Bunrit, Anon, Ruchirawat, Somsak, Thongsornkleeb, Charnsak
Source:
Tetrahedron letters 2011 v.52 no.24 pp. 3124-3127
ISSN:
0040-4039
Subject:
acetonitrile, chemical reactions, chemical structure, lithium, microwave treatment
Abstract:
2-Bromo-1-alkenes are cleanly and conveniently generated in good yields and selectivities via microwave-assisted hydrobromination of 1-alkynes using a combination of lithium bromide (LiBr), chlorotrimethylsilane (TMSCl), and tetraethylammonium bromide (TEAB) in acetonitrile (MeCN).
Agid:
1097728