The first example of asymmetric dihydroxylation of cyclopropylidene derivatives—An enantioenriched formal total synthesis of (−)-filiformin
摘要:
The first example of asymmetric dihydroxylation (AD) of the cyclopropylidene derivatives 4a-e followed by enantiospecific 1,2-rearrangement of the resulted diols 5a-e to give the optically active cyclobutanones 7a-e was reported. The synthesis of 7e constitutes an enantioenriched formal total synthesis of (-)-filiformin (8).
A novel and efficient route to chiral A-ring aromatic trichothecanes—The first enantiocontrolled total synthesis of (-)-debromofiliformin and (-)-filiformin
first enantiocontrolled total synthesis of (-)-debromofiliformin (7a) and (-)-filiformin (7b) starting from 11via the regiocontrolled cyclization of the phenolic allyl alcohol 25 to the A-ringaromatictrichothecane 26, were reported.
The first example of asymmetric dihydroxylation (AD) of the cyclopropylidene derivatives 4a-e followed by enantiospecific 1,2-rearrangement of the resulted diols 5a-e to give the optically active cyclobutanones 7a-e was reported. The synthesis of 7e constitutes an enantioenriched formal total synthesis of (-)-filiformin (8).