Journal of the Chemical Society. Perkin transactions I p. 733 - 740 (1984)
Update date:2022-08-04
Topics:
Collins, Peter M.
Overend, W. George
Racz, Veronica M.
Sequential treatment of methyl 3,4-O-isopropylidene-β-L-erythro-pentopyranosidulose (1) with aqueous sodium hydroxide and phenylhydrazine results in elimination of acetone and formation of 2S-methoxytetrahydropyran-3,4-dione 4-phenylhydrazone (7) as the main product.Similarly, methyl 6-deoxy-3,4-O-isopropylidene-α-L-lyxo-hexopyranosid-2-ulose (2) was converted into 2R-methoxy-6S-methyltetrahydropyran-3,4-dione 4-phenylhydrazone (8).The effect of base on the related uloside, methyl 6-deoxy-2,3-O-isopropylidene-α-L-lyxo-hexapyranoside-4-ulose (16),resulted in the formation of 3-hydroxy-2-methyl-4H-pyran-4-one (maltol) (17).Compounds (7) and (8) have been converted into, respectively, 3-amino-3,4-dideoxy-D-erythro-pentopyranose (22) and 3-amino-3,4,6-trideoxy-L-ribo-hexopyranose (25).
View MoreShijiazhuang Yunxuan Im&Export Co.,Ltd.
Contact:+86-311-83037514
Address:No.6 Hongbin Road
Shandong Jiulong Hisince Pharmaceutical Co.,Ltd.
Contact:--
Address:Huadian Pioneer Park, Huadian Township, Qihe County, Dezhou City, Shandong, P.R.China
Xi'an Costrong Pharmaceutical Co., Ltd.
Contact:029- 68576496
Address:Room 2004,Shuibao Building,No.190,South Erhuan Rd, Yanta District,Xi'an,Shaan Xi,China
Sichuan WeiKeqi Biological Technology Co., Ltd.
website:https://www.weikeqi-biotech.com/en
Contact:86-028-81700200
Address:sichuan Chengdu Qingjiang Zhonglu 63号
Contact:+8618766299236
Address:ROOM808, BUILDING2,NO.230 SHEN ZHEN ROAD, LAOSHAN DISTRICT
Doi:10.1016/S0040-4039(01)80894-7
(1985)Doi:10.1016/j.tet.2010.08.071
(2010)Doi:10.1016/0040-4020(60)80061-0
(1960)Doi:10.1021/ja00336a022
(1984)Doi:10.1021/ic701408m
(2008)Doi:10.1002/ejoc.200701005
(2008)
