Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 61, Issue 4, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202114556
Keywords
Alkenes; Alkenylation; Alkylation; Cross-coupling; Nickel
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Funding
- National Natural Science Foundation of China [21772072, 22071084]
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This study successfully reported a cross-electrophile reaction of alkenyl acetates with alkyl bromides, establishing a new method for the synthesis of aliphatic alkenes that can add more structural complexity and molecular diversity with enhanced functionality tolerance. Preliminary mechanistic studies suggest that the Ni-I species plays a crucial role in the coupling of these two reactivity-mismatched electrophiles.
Catalytic alkylation of stable alkenyl C-O electrophiles is synthetically appealing, but studies to date have typically focused on the reactions with alkyl Grignard reagents. We report herein a cross-electrophile reaction of alkenyl acetates with alkyl bromides. This work has enabled a new method for the synthesis of aliphatic alkenes from alkenyl acetates to be established that can be used to add more structural complexity and molecular diversity with enhanced functionality tolerance. The method allows for a gram-scale reaction and modification of biologically active molecules, and it affords access to useful building blocks. Preliminary mechanistic studies reveal that the Ni-I species plays an essential role for the success of the coupling of these two reactivity-mismatched electrophiles.
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