First total synthesis of (±)-β-microbiotene, (±)-microbiotol and (±)-cyclocuparenol
摘要:
First total syntheses of cyclocuparanes mentioned in the title have been achieved starting from Hagemann's ester via the bicyclo[4.3.1]nonanedione 8. (C) 1999 Elsevier Science Ltd. All rights reserved.
The first enantioselective synthesis of (−)-microbiotol and (+)-β-microbiotene
作者:Adusumilli Srikrishna、Shankarnarayan A. Nagamani、Setti G. Jagadeesh
DOI:10.1016/j.tetasy.2005.03.009
日期:2005.5
The first enantioselective total synthesis of (-)-microbiotol and (+)-beta-microbiotene, sesquiterpenes containing three neighboring quaternary carbon atoms belonging to the cyclocuparane group, starting from cyclogeraniol employing a Sharpless-Katsuki asymmetric epoxidation, a boron trifluoride etherate mediated epoxide rearrangement and ail intramolecular diazo ketone cyclopropanation as key steps, is described. (C) 2005 Elsevier Ltd. All rights reserved.