ChemInform Abstract: Asymmetric Michael Addition of Formaldehyde N,N-Dialkylhydrazones to Alkylidene...

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2002 diastereoselective syntheses, enantioselective syntheses diastereoselective syntheses, enantioselective syntheses (incl. cis/trans-isomerism) O 0031 28 - 046 Asymmetric Michael Addition of Formaldehyde N,N- Dialkylhydrazones to Alkylidene Malonates. — The title reaction affords the corresponding Michael adducts (III) in high yields and good stereose- lectivities. Thiolysis of the hydrazones (III) gives the optically pure dithioketals (V). — (VAZQUEZ, JUAN; PRIETO, AUXILIADORA; FERNANDEZ, ROSARIO; ENDERS, DIETER; LASSALETTA, JOSE M.; Chem. Commun. (Cambridge) (2002) 5, 498-499; Inst. Invest. Quim., CSIC, E-41092 Sevilla, Spain; EN) 1

Transcript of ChemInform Abstract: Asymmetric Michael Addition of Formaldehyde N,N-Dialkylhydrazones to Alkylidene...

Page 1: ChemInform Abstract: Asymmetric Michael Addition of Formaldehyde N,N-Dialkylhydrazones to Alkylidene Malonates.

2002 diastereoselective syntheses, enantioselective syntheses

diastereoselective syntheses, enantioselective syntheses (incl. cis/trans-isomerism)O 0031

28 - 046Asymmetric Michael Addition of Formaldehyde N,N-Dialkylhydrazones to Alkylidene Malonates. — The title reactionaffords the corresponding Michael adducts (III) in high yields and good stereose-lectivities. Thiolysis of the hydrazones (III) gives the optically pure dithioketals(V). — (VAZQUEZ, JUAN; PRIETO, AUXILIADORA; FERNANDEZ,ROSARIO; ENDERS, DIETER; LASSALETTA, JOSE M.; Chem. Commun.(Cambridge) (2002) 5, 498-499; Inst. Invest. Quim., CSIC, E-41092 Sevilla,Spain; EN)

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