title: Tandem allylic substitution-5-exo-dig-carbocyclization: a [4 + 1]-annulation approach to arylidene cyclopentenes from MBH-acetates of acetylenic aldehydes.
abstract: A new entry for the synthesis of functionalized arylidene cyclopentenes under metal-free reaction conditions is disclosed via the base-promoted [4 + 1]-annulation of Morita-Baylis-Hillman acetates of acetylenic aldehydes with active methylene derivatives involving tandem allylic substitution followed by 5-exo-dig-carbocyclization.
authors.affiliation: Division of Natural Products Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India. rajireddy@iict.res.in
authors.forename: Chada Raji
authors.initials: CR
authors.lastname: Reddy
authors.forename: Paridala
authors.initials: P
authors.lastname: Kumaraswamy
authors.forename: Motatipally Damoder
authors.initials: MD
authors.lastname: Reddy
mesh_terms: D000085:Acetates / Q000737:chemistry*; D000447:Aldehydes / Q000737:chemistry*; D000475:Alkenes / Q000737:chemistry*; D000480:Alkynes / Q000737:chemistry*; D003500:Cyclization; D003517:Cyclopentanes / Q000737:chemistry*; D013696:Temperature
chemical_list: D000085:Acetates; D000447:Aldehydes; D000475:Alkenes; D000480:Alkynes; D003517:Cyclopentanes