Nucleophilic Addition to Silyl-Protected Five-Membered Ring Oxocarbenium Ions Governed by Stereoelectronic Effects
作者:Vi Tuong Tran、K. A. Woerpel
DOI:10.1021/jo400945j
日期:2013.7.5
selectivity in silyl-protected 2-deoxyribose systems. The disiloxane ring unexpectedly enables the diaxial conformer of the cation to be stabilized by an electronegative atom at C-3. This low energy conformer subsequently undergoes stereoelectronically controlled nucleophilicaddition to give substituted tetrahydrofurans with high diastereoselectivity.