PREFERRED BETA-GLYCOSIDE FORMATION BY PHASE-TRANSFER CATALYSIS IN THE SYNTHESIS OF D-ARABINOFURANOSYL-7-DEAZAPURINE NUCLEOSIDES

被引：16

作者：

SEELA, F

WINKELER, D

机构：

[1] Universität Paderborn—Gesamthochschule, Paderborn, D-4790

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH | 1979年 / 18卷 / 07期

关键词：

D O I：

10.1002/anie.197905361

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The ratio of α‐to β‐glycoside [(3a):(4a)] obtained in the phase‐transfer recation of 1 with 2 can be modified by means of the catalyst: it is 8:2 for PhCH2Et 3⊕NCI⊖ and 6:4 for Bu4N⊕HSO 4⊖. (Figure Presented.) Copyright © 1979 by Verlag Chemie, GmbH, Germany

引用

收藏

页码：536 / 536

页数：1

相关论文

共 10 条

[1] 2,3,5-TRI-O-BENZYL-D-RIBOSYL AND -L-ARABINOSYL BROMIDES [J].

BARKER, R ;

FLETCHER, HG .

JOURNAL OF ORGANIC CHEMISTRY, 1961, 26 (11) :4605-&

[2] PYRROLO[2,3-D]PYRIMIDINES [J].

DAVOLL, J .

JOURNAL OF THE CHEMICAL SOCIETY, 1960, (JAN) :131-138

[3]

Dehmlow E. V., 1974, ANGEW CHEM, V86, P187

[4] PHASE-TRANSFER CATALYZED 2-PHASE REACTIONS IN PREPARATIVE ORGANIC-CHEMISTRY [J].

DEHMLOW, EV .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH, 1974, 13 (03) :170-179

[5] ADVANCES IN PHASE-TRANSFER CATALYSIS [J].

DEHMLOW, EV .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH, 1977, 16 (08) :493-505

[6]

DEHMLOW EV, 1977, ANGEW CHEM, V89, P521

[7] SYNTHESIS OF 5-METHYLTUBERCIDIN AND ITS ALPHA-ANOMER VIA CONDENSATION OF ANION OF 4-METHOXY-5-METHYL-2-METHYLITHIOPYRROLO [2,3-D] PYRIMIDINE AND 2, 3, 5-TRI-O-BENZYL-D-RIBOFURANOSYL BROMIDE [J].

KONDO, T ;

OHGI, T ;

GOTO, T .

AGRICULTURAL AND BIOLOGICAL CHEMISTRY, 1977, 41 (08) :1501-1507

[8]

LUPKE U, CHEM BER

[9]

SUHADOLNIK RJ, 1971, NUCLEOSIDE ANTIBIOTI

[10] PYRROLOPYRIMIDINE NUCLEOSIDES .6. SYNTHESIS OF 1,3-RIBOFURANOSYLPYRROLO 2,3-D!PYRIMIDINES AND 7-BETA-D-RIBOFURANOSYLPYRROLO 2,3-D!PYRIMIDINES VIA SILYLATED INTERMEDIATES [J].

TOLMAN, RL ;

TOLMAN, GL ;

ROBINS, RK ;

TOWNSEND, LB .

JOURNAL OF HETEROCYCLIC CHEMISTRY, 1970, 7 (04) :799-&