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Nickel-catalyzed carbonylative Negishi cross-coupling reactions

✍ Scribed by Qiaoling Wang; Chuo Chen

Book ID
104095202
Publisher
Elsevier Science
Year
2008
Tongue
French
Weight
225 KB
Volume
49
Category
Article
ISSN
0040-4039

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✦ Synopsis

Catalytic carbonylative Negishi cross-coupling reactions are described. This method readily provides various enones from enol triflates and diorganozinc reagents with catalytic amounts of nickel(II) chloride-4,4 0 -dimethoxyl-2,2 0 -bipyridyl under carbon monoxide atmosphere. The rate of carbon monoxide insertion is increased by the addition of lithium or magnesium halides and the use of polar solvents. Alkenyl iodides can also be used in place of enol triflates.

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