148. Asymmetric alkylations of a sultam-derived glycinate equivalent: practical preparation of enantiomerically pure α-amino acids
     Oppolzer, W.; Moretti, R.; Thomi, S.
     Tetrahedron Lett. 1989, 30, 6009-6010

Deprotonation/alkylation of sultam-derived N-[bis(methyl)thiomethylene]glycinate equivalent 3 gave crystalline products 5 which on mild hydrolysis furnished α-amino acids 7 (~100% e.e.) in high overall yield.

DOI : 10.1016/S0040-4039(01)93840-7 

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