Synthesis and photochromic properties of perfluoroalkyl and trifluoromethylsulphonyl substituted indoline spirochromenes

A number of new perfluoroalkyl and trifluoromethylsulphonyl substituted indoline spirochromenes have been synthesized. It was shown that the introduction of trifluoromethylsulphonyl or heptafluoropropyl groups into the chromene moiety of the indoline spirochromene molecule results in their ability t...

Full description

Saved in:
Bibliographic Details
Published in:Dyes and pigments 1981, Vol.2 (3), p.205-213
Main Authors: Yagupolskii, L.M., Pasenok, S.V., Gal'bershtam, M.A., Bobyleva, G.K., Popov, V.I., Kondratenko, N.V.
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A number of new perfluoroalkyl and trifluoromethylsulphonyl substituted indoline spirochromenes have been synthesized. It was shown that the introduction of trifluoromethylsulphonyl or heptafluoropropyl groups into the chromene moiety of the indoline spirochromene molecule results in their ability to undergo photochromic conversions. The dyes were examined by spectrophotometry and the rate constants were determined for the fading reaction. Some correlations of the rate constants with the electron withdrawing properties of the substituents were observed.
ISSN:0143-7208
1873-3743
DOI:10.1016/0143-7208(81)80018-6