title: Rhodium catalyzed oxidative coupling of salicylaldehydes with diazabicyclic olefins: a one pot strategy involving aldehyde C-H cleavage and π-allyl chemistry towards the synthesis of fused ring chromanones.
abstract: An efficient one pot strategy for the synthesis of cyclopentene fused chromanone derivatives through the direct oxidative coupling of salicylaldehydes with bicyclic olefins in the presence of a rhodium-copper catalyst system is described. This is the first report on the ring opening-ring closing of bicyclic hydrazines via metal catalyzed oxidative coupling reaction.
authors.affiliation: Organic Chemistry Section, Chemical Sciences and Technology Division, National Institute for Interdisciplinary Science and Technology (CSIR), Trivandrum 695 019, India.
authors.forename: E
authors.initials: E
authors.lastname: Jijy
authors.forename: Praveen
authors.initials: P
authors.lastname: Prakash
authors.forename: M
authors.initials: M
authors.lastname: Shimi
authors.forename: Petri M
authors.initials: PM
authors.lastname: Pihko
authors.forename: Nayana
authors.initials: N
authors.lastname: Joseph
authors.forename: K V
authors.initials: KV
authors.lastname: Radhakrishnan
mesh_terms: D000447:Aldehydes / Q000737:chemistry*; D000475:Alkenes / Q000737:chemistry*; D001372:Aza Compounds / Q000737:chemistry*; D002384:Catalysis; D002867:Chromones / Q000138:chemical synthesis / Q000737:chemistry*; D003500:Cyclization; D015394:Molecular Structure; D058451:Oxidative Coupling; D012238:Rhodium / Q000737:chemistry*
chemical_list: D000447:Aldehydes; D000475:Alkenes; D001372:Aza Compounds; D002867:Chromones; C013243:salicylaldehyde; C068514:4-chromanone; D012238:Rhodium