Abstract
| - The two electrophilic Vilsmeier−Haack reagents POCl3·DMF 2 or (CF3SO2)2Ο·DMF 3 mediate theone-step and selective conversion of O-triethylsilyl (O-TES), O-tert-butyldimethylsilyl (O-TBDMS),O-tert-butyldiphenylsilyl (O-TBDPS), and O-triisopropylsilyl (O-TIPS) ethers of d-glucal to thecorresponding C(6)-O-formates.
|