Seiji Shirakawa, Kensuke Ota, Shogo J. Terao and Keiji Maruoka
Org. Biomol. Chem., 2012,10, 5753-5755
DOI:
10.1039/C2OB07193B,
Communication
Enantioselective direct aldol reaction of α-substituted nitroacetates with aqueous formaldehyde for the synthesis of α-alkyl serines has been achieved under base-free neutral phase-transfer conditions with a bifunctional chiral phase-transfer catalyst.