Acid-catalyzed intramolecular C-alkylation in .beta.,.gamma.-unsaturated diazomethyl ketones. 2. A simple new synthetic route to octahydro-4,10a-ethanophenanthren-12-ones and octahydropentaleno[6a,1-a]naphthalen-4-ones
Aryl-participated intramolecular cyclisation of diazomethyl ketones. stereo-controlled synthesis of bridged tetracyclic systems related to terpenoids
作者:Sanat K. Maity、Sukanta Bhattacharyya、Debabrata Mukherjee
DOI:10.1039/c39860000481
日期:——
New stereocontrolled routes to the bridgedtetracyclicketones (2) and (3) have been developed utilising acid-catalysed intramolecularcyclisation of the diazomethylketones (19) and (22) as the key steps.