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- Title
Ruthenium(II)-Catalyzed Synthesis of Spirobenzofuranones by a Decarbonylative Annulation Reaction.
- Authors
Kaishap, Partha P.; Duarah, Gauri; Sarma, Bipul; Chetia, Dipak; Gogoi, Sanjib
- Abstract
The first decarbonylative insertion of an alkyne through C−H/C−C activation of six-membered compounds is reported. The Ru-catalyzed reaction of 3-hydroxy-2-phenyl-chromones with alkynes works most efficiently in the presence of the ligand PPh3 to provide spiro-indenebenzofuranones. Unlike previously reported metal-catalyzed decarbonylative annulation reactions, in the present decarbonylative annulation reaction, the annulation occurs before extrusion of carbon monoxide.
- Subjects
RUTHENIUM catalysts; FURANONE synthesis; DECARBONYLATION; ANNULATION; HYDROXY acids
- Publication
Angewandte Chemie, 2018, Vol 130, Issue 2, p465
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.201710049