作者:A Srikrishna、K Anebouselvy
DOI:10.1016/s0040-4039(02)00382-9
日期:2002.4
An enantiospecific synthesis of a thapsane containing an oxygen substituent at the C-3 position is accomplished starting from (R)-carvone. A Claisen rearrangement and an intramolecular diazoketone cyclopropanation reaction were employed for the stereo- and regiospecific generation of the three contiguous quaternary, carbon atoms present in the thapsanes. (C) 2001 Published by Elsevier Science Ltd.