Synthesis of furanose glycals from furanose 1,2-diols and their cyclic thiocarbonate esters
摘要:
Two new methods for the synthesis of furanoid glycals are described. Both procedures were shown to be faster and cheaper that those previously reported. Protected 1,2-dihydroxypento- and hexo-furanose derivatives with the D-xylo, D-gluco and D-riba, D-allo configurations were used as starting material to afford the corresponding C-3,4 D-threo and D-erythro glycals derivatives. (C) 1997 Elsevier Science Ltd.
Synthesis of furanose glycals from furanose 1,2-diols and their cyclic thiocarbonate esters
摘要:
Two new methods for the synthesis of furanoid glycals are described. Both procedures were shown to be faster and cheaper that those previously reported. Protected 1,2-dihydroxypento- and hexo-furanose derivatives with the D-xylo, D-gluco and D-riba, D-allo configurations were used as starting material to afford the corresponding C-3,4 D-threo and D-erythro glycals derivatives. (C) 1997 Elsevier Science Ltd.
Facile Cleavage of Silyl Protecting Groups with Catalytic Amounts of FeCl<sub>3</sub>
作者:Yikang Wu、Yong-Qing Yang、Jia-Rong Cui、Lin-Gui Zhu、Ya-Ping Sun
DOI:10.1055/s-2006-926256
日期:——
A very mild and environmentally benign method for removal of silyl protecting groups using catalytic amounts of iron ion in MeOH is presented. The method is particularly effective for cleaving triethylsilyl (TES) protecting groups.