PHOTOCHROMIC AND THERMOCHROMIC MANNICH-BASES .1. MANNICH-BASES FROM 3,5-DI-TERT-BUTYL-4-HYDROXYBENZALDEHYDE AND 2-NAPHTHOLS

Authors
KOMISSAROV VN UKHIN LY KHARLANOV VA LOKSHIN VA BULGAREVICH EY MINKIN VI FILIPENKO OS NOVOZHILOVA MA ALDOSHIN SM ATOVMYAN LO
Citation
Vn. Komissarov et al., PHOTOCHROMIC AND THERMOCHROMIC MANNICH-BASES .1. MANNICH-BASES FROM 3,5-DI-TERT-BUTYL-4-HYDROXYBENZALDEHYDE AND 2-NAPHTHOLS, Bulletin of the Russian Academy of Sciences, Division of Chemical Sciences, 41(10), 1992, pp. 1875-1883
Citations number
10
Categorie Soggetti
Chemistry
Journal title
Bulletin of the Russian Academy of Sciences, Division of Chemical Sciences → ACNP
ISSN journal
10635211
Volume
41
Issue
10
Year of publication
1992
Part
2
Pages
1875 - 1883
Database
ISI
SICI code
1063-5211(1992)41:10<1875:PATM.M>2.0.ZU;2-D
Abstract
Mannich bases exhibiting photo- and thermochromic properties in soluti ons were synthesized from 3,5-di-tert-butyl-4-hydroxybenzaldehyde and 2-naphthols. An investigation of an acetyl derivative of methylenequin one, modeling a product of photo- and thermochromic transformations, p roved that the color change of solutions of the Mannich bases is due t o reversible dissociation into colored methylenequinones and morpholin e. On the basis of data of x-ray diffraction analysis of one of the Ma nnich bases, characteristics of their molecular structure were determi ned, and reasons were stated for their effect on the dissociation mech anism.