72457-81-9Relevant articles and documents
Novel Steroidal Chiral Auxiliaries: Enantioselective Synthesis of Chiral α-Hydroxy Acids
Huang, Deeng-Lih,Draper, Richard W.
, p. 661 - 662 (2007/10/02)
The synthesis is reported of three novel steroidal chiral auxiliaries (4) which were used to generate an α-hydroxy acid in high optical purity (90-98percent ee).
p-Toluenesulfonic Acid Adsorbed on Silica Gel: An Efficient Dehydrating Agent of Alcohols
D'Onofrio, Franco,Scettri, Arrigo
, p. 1159 - 1161 (2007/10/02)
Secondary and tertiary alcohols are efficiently dehydrated by reaction with p-toluenesulfonic acid supported on silica gel.In particular, the procedure allows the direct conversion of 3-hydroxy-steroids into Δ2-olefins or Δ3,5-dienes, without passing through the mesylate or tosylate esters.
Chemistry of 3-phenylcholestan-3-ols.
Nambara,Matsuki
, p. 1394 - 1396 (2007/10/13)
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