First Lewis acid catalyzed [4+2] cycloaddition reaction of 1,3,3-trimethyl-2-vinyl-1-cyclohexene with chromones: a new entry to analogues of the puupehenone group of marine diterpenoids and kampanols
作者:Rajesh M. Kamble、M. M. V. Ramana
DOI:10.1007/s00706-011-0480-z
日期:2011.5
AbstractA rapid assembly of the tetracycliccore of marinediterpenoidsrelated to puupehenone and kampanols featuring a Lewis acid catalyzed [4+2] cycloaddition reaction of 1,3,3-trimethyl-2-vinyl-1-cyclohexene and chromone dienophiles is described. Graphical abstract
Diels-Alder Reaction of 2-Ethenyl-1,3,3-trimethylcyclohexene with 4H-Chromen-4-ones: A Convergent Approach to ABCD Tetracyclic Core of Marine Diterpenoids Related to Puupehenone and Kampanols
作者:Rajesh M. Kamble、M. M. V. Ramana
DOI:10.1002/hlca.201000188
日期:2011.2
A rapid assembly of the tetracycliccore of marinediterpenoidsrelated to puupehenone and kampanols by DielsAlder reaction of 2‐ethenyl‐1,3,3‐trimethylcyclohexene with 4H‐chromen‐4‐one (=4H‐1‐benzopyran‐4‐one) dienophiles is described.
Microwave-assisted Diels–Alder reaction of 1,3,3-trimethyl-2-vinyl-1-cyclohexene with chromones — An expeditious approach to analogues of the puupehenone group of marine diterpenoids and kampanols
作者:Rajesh M. Kamble、M. M.V. Ramana
DOI:10.1139/v10-137
日期:2010.12
A rapid assembly of the tetracycliccore of marinediterpenoidsrelated to puupehenone and kampanols by a Diels–Alderreaction of 1,3,3-trimethyl-2-vinyl-1-cyclohexene with chromones under microwav...