Journal of the Chemical Society. Perkin transactions I p. 2267 - 2272 (1981)
Update date:2022-08-04
Topics:
Aslani-Shotorbani, Gaffar
Buchanan, J. Grant
Edgar, Alan R.
Shanks, Colin T.
Williams, Gavin C.
2,3,4,6-Tetra-O-benzyl-D-glucitol (5) reacts with toluene-p-sulphonyl chloride in pyridine at 60 deg C to form mainly the furanoid products 2,3,6-tri-O-benzyl-1,4-anhydro-D-glucitol (10) and its 5-toluene-p-sulphonate (11) with loss of the 4-O-benzyl group.The pyranoid product tetra-O-benzyl-1,5-anhydro-D-glucitol preponderates when the intermediate 2,3,4,6-tetra-O-benzyl-1-O-toluene-p-sulphonyl-D-glucitol (6) is converted into its O-5 oxyanion.Benzyloxy participation has been exploited in a new synthesis of 2,3,5-tri-O-benzyl-α (and β)-D-ribofuranosylethyne, (20) and (4), from 2,3,4,5-tetra-O-benzyl-aldehydo-D-ribose.A synthesis of 2-α-D-ribofuranosylmaleimide, the α-isomer showdomycin, from (20) is described.
View MoreSHANDONG QINGYUNCHANGXIN CHEMICAL SCIENCE-TECH CO.,LTD
Contact:86-21-60560171
Address:1689Donghuan Rade,Qingyun County, Dezhou City, Shandong,China
hangzhou sunchem trading co., ltd.
Contact:13588470430--
Address:Room 406-407, the 4th Building, No549
Contact:86-510-82853889
Address:Rm.3732, No.18-2,Yonghe Rd.,Wuxi,Jiangsu,214023,China
Shanxi Tongji Pharmaceuticals Co., Ltd.
Contact:+86-359-3024784
Address:Xikuang South Road, Ruicheng County , Shanxi
Xinchang Jiu Xin Pharmaceutical Co., Ltd
website:http://www.jiuxinpharm.com
Contact:86 137 5756 8585
Address:Poyang industry Park
Doi:10.1021/ja00367a029
(1982)Doi:10.1016/j.ejmech.2004.07.003
(2004)Doi:10.1021/ol048191o
(2004)Doi:10.1007/BF00832997
()Doi:10.1016/j.tet.2004.08.093
(2004)Doi:10.1002/hlca.19810640625
(1981)
