Chiral polymerization - Optically active conjugated polymers prepared from achiral monomers by polycondensation in a chiral nematic solvent

被引：121

作者：

Goto, H ^{[1
]}

Akagi, K ^{[1
]}

机构：

[1] Univ Tsukuba, TIMS, Inst Mat Sci, Tsukuba, Ibaraki 3058573, Japan

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2005年 / 44卷 / 28期

关键词：

chirality; circular dichroism; circularly polarized luminescence; liquid crystals; polymerization;

D O I：

10.1002/anie.200462859

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

(Chemical Equation Presented) Contagious chirality: A chiral polymer (see image) was obtained from the polycondensation of an achiral monomer by using a chiral nematic liquid crystal (N*-LC) as an inert reaction solvent. The chirality of the polymer is thought to derive from the asymmetry produced by the chiral medium during polymerization. © 2005 Wiley-VCH Verlag GmbH & Co. KGaA.

引用

页码：4322 / 4328

页数：7

共 57 条

[1] PHOTO-POLYMERIZATION IN CHIRAL CRYSTALS .4. ENGINEERING OF CHIRAL CRYSTALS FOR ASYMMETRIC (2-PI + 2-PI) PHOTO-POLYMERIZATION - EXECUTION OF AN ABSOLUTE ASYMMETRIC-SYNTHESIS WITH QUANTITATIVE ENANTIOMERIC YIELD [J].

ADDADI, L ;

VANMIL, J ;

LAHAV, M .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1982, 104 (12) :3422-3429

[2] De novo enantioselective syntheses of galacto-sugars and deoxy sugars via the iterative dihydroxylation of dienoate [J].

Ahmed, MM ;

Berry, BP ;

Hunter, TJ ;

Tomcik, DJ ;

O'Doherty, GA .

ORGANIC LETTERS, 2005, 7 (04) :745-748

[3] Helical polyacetylene synthesized with a chiral nematic reaction field [J].

Akagi, K ;

Piao, G ;

Kaneko, S ;

Sakamaki, K ;

Shirakawa, H ;

Kyotani, M .

SCIENCE, 1998, 282 (5394) :1683-1686

[4] THE ROLE OF THE PRODUCT IN ASYMMETRIC C-C BOND FORMATION - STOICHIOMETRIC AND CATALYTIC ENANTIOSELECTIVE AUTOINDUCTION [J].

ALBERTS, AH ;

WYNBERG, H .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1989, 111 (18) :7265-7266

[5]

Athawale V, 2004, J POLYM MATER, V21, P305

[6] Direct coupling of pyrroles with carbonyl compounds: Short enantioselective synthesis of (S)-Ketorolac [J].

Baran, PS ;

Richter, JM ;

Lin, DW .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2005, 44 (04) :609-612

[7]

BARAN PS, 2005, ANGEW CHEM, V117, P615

[8]

Berova, 2000, CIRCULAR DICHROISM P, P337

[9] Macroscopically chiral system of three independent orientational effects as a condition for absolute asymmetric synthesis [J].

Bielski, R ;

Tencer, M .

CANADIAN JOURNAL OF CHEMISTRY, 2003, 81 (09) :1029-1037

[10]

Boydell A. J., 2004, ANGEW CHEM, V116, P5795

← 1 2 3 4 5 6 →