Macmillan, Wm. Geo. published the artcileFormation of N-nitrosoamines from tertiary amines. I. Conversion of derivatives of dimethylaniline by nitrous acid into the corresponding nitrosoamines and monomethylanilines, HPLC of Formula: 53484-26-7, the publication is Journal of the Chemical Society (1929), 2803-7, database is CAplus.
Abnormal reactions between HNO2 and tert. aromatic amines occur, leading to the formation of nuclear NO2 compounds by loss of H or halogens and N-nitrosoamines by loss of an alkyl group. With O2NC6H4NMe2, both types of reaction occur, the 2nd predominating at room temperature but often being accompanied by the 1st if the temperature is allowed to rise. 3-O2NC6H4NMe2 (10 g.), 30 cc. HCl and 70 cc. H2O and 25 cc. of 50% NaNO2 give 37% of the nitrosamine, 4 g. 3,4-(O2N)2C6H3NMe2 and 0.5 g. of the 3,6-di-NO2 derivative The 4-O2NC6H4NMe2 gives 46% of the nitrosamine, increased to 75% by the use of 4 times the HNO2. 3,6-(O2N)2C6H4NMe2 gives 73% of 3,6-dinitrophenyl-methylnitrosamine, orange, m. 128°. 4,3-Br(O2N)C6H3NMe2 gives 57% of 4-bromo-3-nitrophenylmethylnitrosamine, yellow, m. 78°, and a small amount of 3,4,6-Br(O2N)2C6H2-NMe2. 4,2-Br(O2N)C6H3NMe2 gives 80% of the corresponding nitrosamine, m. 73°. Hydrolysis with CO(NH2)2 and H2SO4 gives the corresponding monomethylanilines: 3,6-di-NO2, red, m. 163°; 4-bromo-3-nitro, claret, m. 81°; 4-bromo-2-nitro, orange, m. 103°; 4-bromo-2,6-dinitro, yellow, m. 106°.
Journal of the Chemical Society published new progress about 53484-26-7. 53484-26-7 belongs to bromides-buliding-blocks, auxiliary class Bromide,Nitro Compound,Amine,Benzene, name is 4-Bromo-N-methyl-2-nitroaniline, and the molecular formula is C7H7BrN2O2, HPLC of Formula: 53484-26-7.
Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary