620167-67-1Relevant academic research and scientific papers
General route to 4a-methylhydrofluorene diterpenoids: Total syntheses of (±)-taiwaniaquinones D and H, (±)-taiwaniaquinol B, (±)-dichroanal B, and (±)-dichroanone
Banerjee, Mainak,Mukhopadhyay, Ranjan,Achari, Basudeb,Banerjee, Asish Kr.
, p. 2787 - 2796 (2007/10/03)
A general and convergent route for the synthesis of the 4a-methylhydrofluorene diterpenoids has been established through a common hexahydrofluorenone intermediate (10) obtained via Pd(0)-catalyzed reductive cyclization of a substituted 2-(2-bromobenzyl) methylene cyclohexane (13). The strategy has been successfully utilized for the synthesis of (±)-taiwaniaquinones D (3) and H (5), (±)-taiwaniaquinol B (1), (±)-dichroanal B (7), and (±)-dichroanone (8).
Intramolecular Heck reaction strategy for the synthesis of functionalised tetrahydroanthracenes: A facile formal total synthesis of the linear abietane diterpene, umbrosone
Sengupta, Sujaya,Mukhopadhyay, Ranjan,Achari, Basudeb,Banerjee, Asish Kr.
, p. 1515 - 1519 (2007/10/03)
Rapid annulation employing an intramolecular Heck reaction yielded the functionalised 1,1,10-trimethyl-6-methoxy-1,2,3,4-tetrahydroanthracene 4a, a key intermediate for the linear diterpenoid quinone umbrosone (1), and the related compounds 4b-d. A simila
First Total Synthesis of the 4a-Methyltetrahydrofluorene Diterpenoids (±)-Dichroanal B and (±)-Dichroanone
Banerjee, Mainak,Mukhopadhyay, Ranjan,Achari, Basudeb,Banerjee, Asish Kr.
, p. 3931 - 3933 (2007/10/03)
(Matrix presented) 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.
