Ionic hydrogenation of C-20, 22-ketene dithioacetal: stereoselective synthesis of steroidal C (20R) aldehydes.
Homologation of 16-dehydropregnenolone acetate leads to excellent stereocontrolled synthesis of unnatural C (20R) aldehydes and through compound .
Organic Chemistry Synthesis Division, National Chemical Laboratory, Pune 411 008, India.
Bapurao B
BB
Shingate
Braja G
BG
Hazra
Vandana S
VS
Pore
Rajesh G
RG
Gonnade
Mohan M
MM
Bhadbhade