منابع مشابه
Nitrosamines and Aromatic Amines
A new method for the simultaneous determination of hemoglobin adducts from aromatic amines and tobacco-specific nitrosamines (TSNA) is described. After mild base-catalysed hydrolysis releasing aromatic amines and the TSNA adduct 4-hydroxy-1-(3-pyridyl)-1butanone (HPB), the extraction, cleanup, and concentration are performed by a one-step procedure using C 1 8 cartridges. Determination in the p...
متن کاملThe Biochemistry of Aromatic Amines
1. 2-Naphthylhydroxylamine and 2-nitrosonaphthalene were present in urine of dogs but not of guinea pigs, hamsters, rabbits or rats dosed with 2-naphthylamine. N-Acetyl-2-naphthylhydroxylamine and its O-sulphonic acid and O-glucosiduronic acid were not detected in the urine of any of these species. 2. Bile from rats dosed with 2-naphthylamine contained (2-naphthylamine N-glucosid)uronic acid an...
متن کاملElectrophilic Aromatic Substitution of Catechins: Bromination and Benzylation
Relative yields of C-6, C-8. and C-6 and C-8 substituted catechins obtained from the reaction of (+ )-catechin or 3' 4',57-tetra-O-methvl-( + )-catechin with pyridinium hydrobromide-perbromide, bromine. p-hydroxybenzyl al~oh~I, or o-hydroxybenZyI alcohol showed differing selectivities depending upon the electrophile used. Ratios of C-6 to C-8 substituted products were 1 : 1.2 for the reaction o...
متن کاملNH4Br – Br2 Catalysed Oxidative Bromination of Aromatic Compounds
A facile, efficient, simple, environmentally safe, regioselective, controllable and economical method for the oxybromination of aromatic compounds using NH4Br-Br2 system. The electrophilic substitution of bromine generated in situ from NH4Br as a bromine source and molecular bromine as an oxidant.
متن کاملBacterial degradation of monocyclic aromatic amines
Aromatic amines are an important group of industrial chemicals, which are widely used for manufacturing of dyes, pesticides, drugs, pigments, and other industrial products. These compounds have been considered highly toxic to human beings due to their carcinogenic nature. Three groups of aromatic amines have been recognized: monocyclic, polycyclic, and heterocyclic aromatic amines. Bacterial de...
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ژورنال
عنوان ژورنال: IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA
سال: 2019
ISSN: 2500-3070,0579-2991
DOI: 10.6060/ivkkt.20196204.5673