EFFECT OF N-METHYLATION ON THE CONFORMATION OF 2-PHENYLBENZIMIDAZOLE, 2-PHENYLINDOLE AND 3 RELATED ROTATIONALLY CONSTRAINED INDOLES

被引：5

作者：

AMATGUERRI, F ^{[1
]}

CATALAN, J ^{[1
]}

MENA, E ^{[1
]}

FABERO, F ^{[1
]}

机构：

[1] UNIV AUTONOMA MADRID,DEPT QUIM FIS APLICADA,E-28049 MADRID,SPAIN

来源：

MAGNETIC RESONANCE IN CHEMISTRY | 1992年 / 30卷 / 08期

关键词：

2-PHENYLBENZIMIDAZOLE; 2-PHENYLINDOLE; BRIDGED 2-PHENYLINDOLES N-METHYLATION; CONFORMATION; H-1 NMR C-13 NMR; DYE-LASERS;

D O I：

10.1002/mrc.1260300819

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

N‐Methylation of 2‐phenylbenzimidazole, 2‐phenylindole and three 3,2′‐methylene‐bridged 2‐phenylindoles gives rise to significant changes in the chemical shifts of the protons close to the phenyl‐‐‐heterocycle bond. The observed upfield and downfield shifts are accounted for by deviation from a planar conformation in the non‐rigid molecules and by intramolecular compression effects in the more rigid molecules, respectively. Copyright © 1992 John Wiley & Sons, Ltd.

引用

页码：800 / 802

页数：3

共 6 条

[1] PULSED LIQUID-LASERS FROM PROTON-TRANSFER IN THE EXCITED-STATE [J].

ACUNA, AU ;

AMAT, F ;

CATALAN, J ;

COSTELA, A ;

FIGUERA, JM ;

MUNOZ, JM .

CHEMICAL PHYSICS LETTERS, 1986, 132 (06) :567-569

[2] THE ROLE OF THE TORSION OF THE PHENYL MOIETY IN THE MECHANISM OF STIMULATED ULTRAVIOLET-LIGHT GENERATION IN 2-PHENYLBENZAZOLES [J].

CATALAN, J ;

MENA, E ;

FABERO, F ;

AMATGUERRI, F .

JOURNAL OF CHEMICAL PHYSICS, 1992, 96 (03) :2005-2016

[3] PHENYLBENZIMIDAZOLE PROTON-TRANSFER LASER-DYES - SPECTRAL AND OPERATIONAL PROPERTIES [J].

COSTELA, A ;

AMAT, F ;

CATALAN, J ;

DOUHAL, A ;

FIGUERA, JM ;

MUNOZ, JM ;

ACUNA, AU .

OPTICS COMMUNICATIONS, 1987, 64 (05) :457-460

[4] RING CURRENT THEORIES IN NUCLEAR MAGNETIC-RESONANCE [J].

HAIGH, CW ;

MALLION, RB .

PROGRESS IN NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY, 1979, 13 :303-344

[5]

LALLEMAND JY, 1970, B SOC CHIM FR, V11, P4091

[6] INTRAMOLECULAR VAN DER WAALS INTERACTIONS AND H-1 CHEMICAL-SHIFTS - STERIC EFFECTS IN SOME CYCLIC SYSTEMS [J].

LI, S ;

ALLINGER, NL .

TETRAHEDRON, 1988, 44 (05) :1339-1350

← 1 →