STUDIES　ON　GLYCOSIDES　XⅢ．──HIGHLY　STEREOSELECTIVE　SYNTHESIS　OF　PER－O－BENZYLATED　O－，S－α－D－GALACTOPYRANOSIDES　AND　GALACTOSYL　CARBOXYUTES　FROM　PER－O－BENZYIATED　GALACTOSYL　TRIFLUOROACETATE

STUDIES ON GLYCOSIDES XⅢ.──HIGHLY STEREOSELECTIVE SYNTHESIS OF PER-O-BENZYLATED O-,S-α-D-GALACTOPYRANOSIDES AND GALACTOSYL CARBOXYUTES FROM PER-O-BENZYIATED GALACTOSYL TRIFLUOROACETATE

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摘要 s: a Linked O- and S-galactopyranosides, and galactopyranosyl carbexylates were synthesized as the sole products from 2.3,4,6-tetra-O-benzyl-1-trifluoroacetyl-a-D-galacto-pyranose (2). The behavior of the nucleophiles and the two kinds of catalysts (BF3.OEt2 and TMSOTf) were discussed. s: a Linked O- and S-galactopyranosides, and galactopyranosyl carbexylates were synthesized as the sole products from 2.3,4,6-tetra-O-benzyl-1-trifluoroacetyl-a-D-galacto-pyranose (2). The behavior of the nucleophiles and the two kinds of catalysts (BF3.OEt2 and TMSOTf) were discussed.

作者 Jian Min MAO Hong Ming CHEN Jian ZHANG Meng Shen CAI (School of Pharmaceutical Sciences. Beijing Medical University, Beijing 100083)

出处《Chinese Chemical Letters》 SCIE CAS CSCD 1994年第6期465-466,共2页 中国化学快报（英文版）

关键词 PER OF BENZYLATED SYNTHESIS BENZYIATED AND

分类号 O625 [理学—有机化学]

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1Chen Xiao-Ru,Chen Ru-Yu(State Key Laboratory of Elemento-Organic Chemistry,Nankai University,Tianjin 300071)Wang Ru-Ji,Wang Hong-Gen(Central Laboratory,Nankai University,Tianjin 300071).Crystal　and　Molecular　Structure　of　N－Isopropyl－O－（p－Chlorophenyl）－O＇－（1，2：3，4－Di－O＂－isopropylidene－α－D－galactopyranosyl）　Thiophosphoramidate[J].Chinese Journal of Structural Chemistry,1995(6):20-24.
2王安来,汪汉卿,等.Crystal Structure of 1,6：3,4—Dianhydro—β—D—galactopyranose—2—O—p—toly[J].Chinese Journal of Structural Chemistry,1996,15(4):284-287.
3Guo Dong SUI,Han Chun HU,Dao Dao ZHANG,Hou Ming WU,Xia Fei LAO,Jing Fei XU(Department of Chemistry, Fudan University, Shanghai 200433Stat. Key Laboratory of Bioorganic Chemistry and Natural Products Chemistry, Shanghai Instituteof Organic Chemistry, S.Synthesis of the D-Galactopyranoside Derivative of C_(60)[J].Chinese Chemical Letters,1998,9(2):113-115.
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Chinese Chemical Letters

1994年第6期

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STUDIES　ON　GLYCOSIDES　XⅢ．──HIGHLY　STEREOSELECTIVE　SYNTHESIS　OF　PER－O－BENZYLATED　O－，S－α－D－GALACTOPYRANOSIDES　AND　GALACTOSYL　CARBOXYUTES　FROM　PER－O－BENZYIATED　GALACTOSYL　TRIFLUOROACETATE

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STUDIES ON GLYCOSIDES XⅢ．──HIGHLY STEREOSELECTIVE SYNTHESIS OF PER－O－BENZYLATED O－，S－α－D－GALACTOPYRANOSIDES AND GALACTOSYL CARBOXYUTES FROM PER－O－BENZYIATED GALACTOSYL TRIFLUOROACETATE

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STUDIES　ON　GLYCOSIDES　XⅢ．──HIGHLY　STEREOSELECTIVE　SYNTHESIS　OF　PER－O－BENZYLATED　O－，S－α－D－GALACTOPYRANOSIDES　AND　GALACTOSYL　CARBOXYUTES　FROM　PER－O－BENZYIATED　GALACTOSYL　TRIFLUOROACETATE