Brebion, Franck Highly diastereoselective conjugate addition to alkylidene bis(sulfoxides): asymmetric synthesis of (+)-erythro-roccellic acid. [electronic resource] - Angewandte Chemie (International ed. in English) Nov 2003 - 5342-5 p. digital Publication Type: Journal Article ISSN: 1433-7851 Standard No.: 10.1002/anie.200352356 doi