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Synthesis and fluorescence properties of novel benzo[a]phenoxazin-5-one derivatives

✍ Scribed by Jiang Long; Yong-Mei Wang; Teruo Matsuura; Ji-Ben Meng

Publisher
Journal of Heterocyclic Chemistry
Year
1999
Tongue
English
Weight
377 KB
Volume
36
Category
Article
ISSN
0022-152X

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✦ Synopsis

Abstract

Thirteen, benzo[a]phenoxazin‐5‐one derivatives 3a‐m were synthesized from 4‐nitrosoaniline hydrochlorides 1a‐m and ethyl 1,3‐dihydroxynaphthoate 2 and their fluorescence properties were discussed in terms of the electronic effect of substituents. A coupling reaction was carried out with 6‐carbethoxy‐9‐N‐(2‐hydroxyethyl)‐N‐methylamino‐5__H__‐benzo[a]phenoxazin‐5‐one (3k) and acetyl‐DL‐alanine to afford N‐[(6‐carbethoxy‐5‐oxo‐5__H__‐benzo[a]phenoxazin)‐9‐yl]‐N‐methylaminoethylene acetyl‐DL‐alanine ester (4).

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