Asymmetric Addition of α-Diazomethylphosphonate to Alkylideneindolenine Catalyzed by a Trifunctional BINAP-Based Monophosphonium Salt.
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DOI: 10.1021/acs.orglett.2c00213
Abstract: A series of trifunctional BINAP-based monophosphonium phase-transfer catalysts were developed and used in the asymmetric addition of α-diazomethylphosphonates to vinylogous imines formed in situ from sulfonylindoles. This methodology tolerates a broad scope of 2-unsubstituted sulfonyl… read more here.
Keywords: based monophosphonium; trifunctional binap; asymmetric addition; binap based ... See more keywords