Saadi J, Yamamoto H. β-Siloxy-α-haloketones through highly diastereoselective single and double mukaiyama aldol reactions.
Chemistry 2013;
19:3842-5. [PMID:
23424059 PMCID:
PMC3874236 DOI:
10.1002/chem.201204493]
[Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2012] [Indexed: 11/09/2022]
Abstract
Double-action haloketones: A super silyl group enabled the first highly diastereoselective Mukaiyama aldol reactions of α-chloro- and α-fluoroketones with a wide range of aldehydes, providing anti-β-siloxy-α-haloketones. This process is compatible with one-pot double-aldol methodology and allows for rapid access to new halogen-modified polyketide fragments bearing up to four contiguous stereocenters.
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