Nickel-catalysed conjugate addition of trimethylaluminium to cyclopropyl ketones

Abstract
Nickel-catalysed addition of trimethylaluminium to cyclopropyl ketones (RCOC3H5) affords 1-substituted pentan-1-ones (RCOC4H9; R = C6H4, 4- ClC6H4, 4-MeOC6H4, 3,4-Me2C6H3, c. 50% yield; R = 4-BrC6H4, 10%; and R = cyclopropyl, 30%).

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