A NOVEL METHOD FOR MEASUREMENT OF THE MEROCYANINE-SPIROPYRAN INTERCONVERSION IN THE NONACTIVATED 1,3,3-TRIMETHYLSPIRO-(2H-1-BENZOPYRAN-2,2'-INDOLINE) DERIVATIVES

被引：63

作者：

KEUM, SR

LEE, KB

KAZMAIER, PM

BUNCEL, E

机构：

[1] XEROX RES CTR CANADA LTD,DEPT CHEM,MISSISSAUGA L5K 2L1,ON,CANADA

[2] QUEENS UNIV,DEPT CHEM,KINGSTON K7L 3N6,ON,CANADA

来源：

TETRAHEDRON LETTERS | 1994年 / 35卷 / 07期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1016/S0040-4039(00)79953-9

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

A novel method for studying the merocyanine reversible arrow spiropyran (MC reversible arrow SP) interconversion is proposed, consisting of an acid-induced ring opening of the spiropyran followed by neutralization and stopped-flow measurement of ring closure of the resulting merocyanine; the obtained solvatokinetic data indicated a duality of mechanistic pathways depending on the nature of the dye and solvent polarity.

引用

页码：1015 / 1018

页数：4

共 18 条

[11]

KEUM SR, 1993, B KOR CHEM SOC, V14, P16

[12] THERMOCHROMIC AND PHOTOCHROMIC DYES - INDOLINO-BENZOSPIROPYRANS .1. UV-VIS SPECTROSCOPIC STUDIES OF 1,3,3-SPIRO(2H-1-BENZOPYRAN-2,2'-INDOLINES) AND THE OPEN-CHAIN MEROCYANINE FORMS - SOLVATOCHROMISM AND MEDIUM EFFECTS ON SPIRO RING FORMATION [J].