Stereocontrolled synthesis of (±)-α-pinguisene and (±)-pinguisenol
作者:Adusumilli Srikrishna、Dange Vijaykumar
DOI:10.1039/a705600a
日期:——
Total synthesis of (±)-α-pinguisene 1 and (±)-pinguisenol 2, employing an orthoester Claisen rearrangement and an intramolecular diazo ketone cyclopropanation reaction for the stereospecificconstruction of vicinalquaternarycarbonatoms, is described.
Regioselective synthesis of bicyclo[4.2.1]nonane-2,8-diones via BF3.Et2O mediated intramolecular diazo ketone insertion reaction
作者:A Srikrishna、D.B Ramachary
DOI:10.1016/s0040-4039(98)02656-2
日期:1999.2
Treatment of the diazo diones 11a-d with boron trifluoride diethyl etherate furnished the bicyclo[4.2.1]nonane-2,8-diones 15a-d in a highly regioselective manner.