title: A convenient synthesis of alpha-methylene-gamma-butyrolactones from allenyl carbonyl units mediated by Mo(CO)6 through intramolecular cyclocarbonylation.
abstract: A novel procedure for the synthesis of cis-fused bicyclic alpha-methylene-gamma-butyrolactones from allenyl carbonyl functionalities via the molybdenum-mediated cyclocarbonylation is described. The use of Mo(CO)(6) with DMSO to promote reaction results in an efficient and convenient protocol through the three-component assembly in high yields.
authors.affiliation: Department of Chemistry and Lab for Metal-Catalyzed Reactions, Sungkyunkwan University, Suwon 440-746, Korea. cmyu@chem.skku.ac.kr
authors.forename: Chan-Mo
authors.initials: CM
authors.lastname: Yu
authors.forename: Young-Taek
authors.initials: YT
authors.lastname: Hong
authors.forename: Joon-Hwan
authors.initials: JH
authors.lastname: Lee