title: First total synthesis of the 4a-methyltetrahydrofluorene diterpenoids (+/-)-dichroanal B and (+/-)-dichroanone.
abstract: [reaction: see text] A simple synthesis of the 4a-methyltetrahydrofluorene diterpenoids (+/-)-dichroanal B and (+/-)-dichroanone has been achieved through a common hexahydrofluorenone intermediate obtained via Pd(0)-catalyzed reductive cyclization of a substituted 2-(2-bromobenzyl) methylene cyclohexane.
authors.affiliation: Indian Institute of Chemical Biology, 4 Raja S. C. Mullick Road, Kolkata-700 032, India.
authors.forename: Mainak
authors.initials: M
authors.lastname: Banerjee
authors.forename: Ranjan
authors.initials: R
authors.lastname: Mukhopadhyay
authors.forename: Basudeb
authors.initials: B
authors.lastname: Achari
authors.forename: Asish Kr
authors.initials: AK
authors.lastname: Banerjee