Treatment of methyl 2,3-di-O-benzyl-4,6-O-benzylidene-alpha(beta)-D-glucopyranoside with triethyl phosphite and trimethylsilyl trifluoromethanesulfonate affords the seven-membered phostone arising from the attack of reagents on the acetal protecting group. (C) 2003 Elsevier Ltd. All rights reserved.
Treatment of methyl 2,3-di-O-benzyl-4,6-O-benzylidene-alpha(beta)-D-glucopyranoside with triethyl phosphite and trimethylsilyl trifluoromethanesulfonate affords the seven-membered phostone arising from the attack of reagents on the acetal protecting group. (C) 2003 Elsevier Ltd. All rights reserved.