A Mild One-Pot Method for Conversion of Various Steroidal Secondary Alcohols into the Corresponding Olefins
作者:Henri Kagan、Raju Kumar、Shrutisagar Haveli
DOI:10.1055/s-0030-1260803
日期:2011.7
to some hydroxy steroids in the presence of excess base directly leads to steroidal olefins. This methodology is useful for the one-pot synthesis of Δ 2 - or Δ 3 -steroids under mild conditions from the corresponding alcohols.
Photoinduced oxidation of secondary alcohols to ketones was achieved by utilizing an equimolar amount of 4-benzoylpyridine as an oxidant. This transformation proceeds at ambient temperature and exhibits high compatibility with polar functionalities including benzoyl, silyl, and methoxymethyl alcohol protecting groups as well as tosyloxy, bromo, sulfonyl, carbamate, ester, and carboxylic acid units. The present oxidation is solely promoted by the action of organic molecules without the aid of metallic reagents.
BAPTISTELLA, LUCIA HELENA B.;DOS, SANTOS JOSE FERNANDO;BALLABIO, KARIN CR+, SYNTHESIS,(1989) N, C. 436-438
作者:BAPTISTELLA, LUCIA HELENA B.、DOS, SANTOS JOSE FERNANDO、BALLABIO, KARIN CR+