Proline-catalyzed asymmetric formal alpha-alkylation of aldehydes via vinylogous iminium ion intermediates generated from arylsulfonyl indoles
- PMID: 18846525
- DOI: 10.1002/anie.200803947
Proline-catalyzed asymmetric formal alpha-alkylation of aldehydes via vinylogous iminium ion intermediates generated from arylsulfonyl indoles
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