Synthesis of new chiral tetradentate sulfonamide based ligands.

被引：25

作者：

Ho, DE ^{[1
]}

Betancort, JM ^{[1
]}

Woodmansee, DH ^{[1
]}

Larter, ML ^{[1
]}

Walsh, PJ ^{[1
]}

机构：

[1] SAN DIEGO STATE UNIV,DEPT CHEM,SAN DIEGO,CA 92182

来源：

TETRAHEDRON LETTERS | 1997年 / 38卷 / 22期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0040-4039(97)00796-X

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

A two step procedure for the synthesis of chiral tetradentate sulfonamide ligands is reported. The ligands are easily prepared from the corresponding bissulfonamide complexes by directed metallation followed by quenching with either ketones or carbon dioxide in 47 to 82% yield. Preliminary results indicate that these complexes are efficient catalysts in the asymmetric addition of alkyl groups to aldehydes. (C) 1997 Elsevier Science Ltd.

引用

页码：3867 / 3870

页数：4

共 27 条

[21] ENANTIOSELECTIVE ALKYLATION OF ALDEHYDE CATALYZED BY DISULFONAMIDE-TI(O-ISO-PR)4-DIALKYL ZINC SYSTEM
TAKAHASHI, H
KAWAKITA, T
YOSHIOKA, M
KOBAYASHI, S
OHNO, M
[J]. TETRAHEDRON LETTERS, 1989, 30 (50) : 7095 - 7098
[22] NITROGEN DONORS IN ORGANOMETALLIC CHEMISTRY AND HOMOGENEOUS CATALYSIS
TOGNI, A
VENANZI, LM
[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH, 1994, 33 (05): : 497 - 526
[23] METALATION AT METHYL GROUP OF N-SUBSTITUTED O-TOLUENESULFONAMIDES BY EXCESS N-BUTYLLITHIUM . CONDENSATION WITH BENZOPHENONE
WATANABE, H
HAUSER, CR
[J]. JOURNAL OF ORGANIC CHEMISTRY, 1968, 33 (11) : 4278 - &
[24] RING-CHAIN TAUTOMERISM OF IMINE-AMINE OR KETONE-CARBINOL SYSTEMS OBTAINED BY CONDENSATION OF DILITHIO-N-SUBSTITUTED CARBOXAMIDES OR SULFONAMIDES WITH BENZONITRILE . SYNTHESIS OF CYCLIC PRODUCTS
WATANABE, H
MAO, CL
BARNISH, IT
HAUSER, CR
[J]. JOURNAL OF ORGANIC CHEMISTRY, 1969, 34 (04) : 919 - &
[25] ORTHO METALATION OF N-SUBSTITUTED BENZENESULFONAMIDES BY EXCESS N-BUTYLLITHIUM . CONDENSATION WITH CARBONYL COMPOUNDS . CYCLIZATIONS
WATANABE, H
GAY, RL
HAUSER, CR
[J]. JOURNAL OF ORGANIC CHEMISTRY, 1968, 33 (02) : 900 - &
[26] C2 SYMMETRY AND ASYMMETRIC INDUCTION
WHITESELL, JK
[J]. CHEMICAL REVIEWS, 1989, 89 (07) : 1581 - 1590
[27] ZHANG XM, 1995, TETRAHEDRON LETT, V36, P4947

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