Oxidative cyclization and fragmentation of steroidal alcohols induced by ceric ammonium nitrate
作者:Venkataraman Balasubramanian、Cecil H. Robinson
DOI:10.1016/s0040-4039(01)90139-x
日期:——
Oxidative cyclizations of steroidal alcohols (1a–1d) using cericammoniumnitrate (CAN) in aqueous acetonitrile or aqueous acetic acid gave the corresponding cyclic ethers (2a–2d), whereas the tertiary alcohol (4) gave secosteroid (5).