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Bromine-magnesium-exchange as a general tool for the preparation of polyfunctional aryl and heteroaryl magnesium-reagents

✍ Scribed by Mohamed Abarbri; Florian Dehmel; Paul Knochel

Publisher
Elsevier Science
Year
1999
Tongue
French
Weight
237 KB
Volume
40
Category
Article
ISSN
0040-4039

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✦ Synopsis

The scope of the Br-Mg-exchange reaction for the preparation of polyfunctional aryl and heteroaryl magnesium reagents has been studied. Various functional groups (ester, cyano, bromide) were tolerated in the exchange reaction allowing the preparation of polyfunctional Mg-reagents. Several dibromo-or tribromoheterocycles undergo a chemoselective mono-Br-Mg exchange leading to highly functionalized heterocycles.

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