Synthesis 2005(17): 2861-2864  
DOI: 10.1055/s-2005-916040
PAPER
© Georg Thieme Verlag Stuttgart · New York

A New Synthesis of cis-Diol from Alkene Using Iodine-Ammonium Cerium(IV) Nitrate

C. Akira Horiuchi*a, Gong Dana, Masaki Sakamotoa, Kazuhiko Sudaa, Shigeru Usuia, Okihiko Sakamotoa, Shinya Kitoha, Satoshi Watanabea, Takamitsu Utsukiharaa, Sukekatsu Nozakib
a Department of Chemistry, Rikkyo (St. Paul’s) University, Nishi-Ikebukuro, Toshima-Ku, Tokyo 171-8501, Japan
Fax: +81(3)39852397; e-Mail: horiuchi@rikkyo.ac.jp; e-Mail: cahoriuchi@nifty.com;
b Faculty of Pharmaceutical Science, Josai University, Sakado, Saitama 350-0295, Japan
Further Information

Publication History

Received 15 November 2004
Publication Date:
12 October 2005 (online)

Abstract

The reaction mixtures of 5α-cholest-2-ene with iodine-ammonium cerium(IV) nitrate [CAN(IV)] were converted with potassium hydroxide in methanol-water to give the more hindered 2β,3β-diol in high yield. Cyclohexene and cycloheptene similarly reacted to the corresponding cis-diols in good yield. It was found that this reaction intermediate proceeds to give trans-iodoacetate via trans-iodonitrate. This new synthetic method provided several advantages over the Prevost reaction.