DEALKYLATION OF N-SUBSTITUTED INDOLINOSPIRONAPHTHOXAZINE PHOTOCHROMIC COMPOUNDS UNDER UV IRRADIATION

被引:48
作者
BAILLET, G [1 ]
CAMPREDON, M [1 ]
GUGLIELMETTI, R [1 ]
GIUSTI, G [1 ]
AUBERT, C [1 ]
机构
[1] FAC PHARM TIMONE,SPECTROMETRIE MASSE LAB,F-13005 MARSEILLE,FRANCE
关键词
D O I
10.1016/1010-6030(94)03816-3
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
One of the photodegradation processes in toluene solution of indolinospironaphthoxazine compounds can be explained by the reaction of ambient oxygen with the biradical species involved during the ring opening of the closed form of the photochromic compound. This reaction leads to N-dealkylation of the N-alkyl substituted indoline moiety giving 3,3-dimethyloxindole. The direct UV irradiation of 1,3,3-trimethyloxindole giving no 3,3-dimethyloxindole, the N-dealkylation process takes place from the initial photochromic structure.
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页码:147 / 151
页数:5
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