Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
177466 | Dyes and Pigments | 2009 | 4 Pages |
Abstract
From the deuterium content (x-value) of deuterated molecules obtained from the reaction of an excess of Fischer base-d2 with salicylaldehydes, it is found that the formation of the dicondensed indolinobenzospiropyrans occurred via a carbinol intermediate, rather than an open merocyanine form of spiropyran. 1H NMR behavior supported this proposed mechanism, indicating that a carbinol intermediate was simultaneously, and not consecutively, formed prior to the transformation to both spiropyrans and dicondensed indolinobenzospiropyran.
Keywords
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Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Sam-Rok Keum, Byung-Soo Ku, Min-Hyung Lee, Gyeong-Yup Chi, Soon-Sung Lim,