Control of Transient Aluminum–Aminals for Masking and Unmasking Reactive Carbonyl Groups

Autor: Brannon C. Springer, David A. Colby, Francis J. Barrios
Rok vydání: 2013
Předmět:
Zdroj: Organic Letters. 15:3082-3085
ISSN: 1523-7052
1523-7060
DOI: 10.1021/ol401265a
Popis: A new reagent, the dimethylaluminum N,O-dimethylhydroxylamine complex, is effective at masking reactive carbonyl groups in situ from nucleophilic addition. This reagent allows chemoselective addition of reducing reagents, Grignard reagents, organolithiums, Wittig reagents, and enolates into substrates with multiple carbonyl groups. Moreover, the trapped carbonyl group, a stable aminal, can be unmasked in situ for additional synthetic manipulations.
Databáze: OpenAIRE