A new approach to retinoids via organometallic addition to pyrylium salts
作者:Karl Hemming、Edna Faria De Medeiros、Richard J. K. Taylor
DOI:10.1039/c39940002623
日期:——
A new, concise approach to retinoid synthesis is described based on organometallic addition to pyrylium salts; the use of 4-methylpyrylium tetrafluoroborate giving 13Z-retinal which is readily isomerised to retinal itself; the corresponding unsubstituted and 4-cyclohexyl pyrylium salts are transformed into 13-H and 13-cyclohexyl retinal analogues.