Synthesis of <scp>l</scp>-Sugars from 4-Deoxypentenosides
作者:Fabien P. Boulineau、Alexander Wei
DOI:10.1021/ol026175q
日期:2002.6.1
4-Deoxypentenosides, which are readily derived from (D)- sugars, resemble glycals in structure and reactivity and can undergo stereoselective epoxidation and S(N)2 nucleophilic addition to produce (L)-Sugars in pyranosidic form.
Stereoselective Epoxidation of 4-Deoxypentenosides: A Polarized-π Model
作者:Gang Cheng、Fabien P. Boulineau、Siong-Tern Liew、Qicun Shi、Paul G. Wenthold、Alexander Wei
DOI:10.1021/ol0617401
日期:2006.9.1
The high facioselectivity in the epoxidation of 4-deoxypentenosides (4-DPs) by dimethyldioxirane ( DMDO) correlates with a stereoelectronic bias in the 4-DPs' ground-state conformations, as elucidated by polarized-pi frontier molecular orbital (PPFMO) analysis.