Dodda, Rajasekhar Synthesis of 2,3,4-Trisubstituted Thiochromanes using an Organocatalytic Enantioselective Tandem Michael-Henry Reaction. [electronic resource] - Advanced synthesis & catalysis Feb 2008 - 537-541 p. digital Publication Type: Journal Article ISSN: 1615-4150 Standard No.: 10.1002/adsc.200700331 doi