53905-07-0Relevant articles and documents
Reactions of aromatic nitro compounds: LXXIV.* azo coupling of anionic nitroarene σ-complexes with aromatic diazo compounds. Effect of reaction conditions on the yield of nitroazobenzenes
Blokhina,Shakhkel'dyan,Atroshchenko,Alifanova,Gitis,Kaminskii,Moiseev
, p. 401 - 403 (2001)
Effect of a number of factors on the yield of nitroazobenzenes in the reaction of 4-nitro-and 4-dimethylaminobenzenediazonium tetrafluoroborates with anionic σ adducts derived from 1,3-dinitrobenzene was studied. Conditions were found which allow nitroazobenzenes to be prepared in 80-90% yield.
Experimental and theoretical studies of azo derivatives in terms of different donors, acceptors and position isomerism: Synthesis, characterization and a combined electronic absorption, electrochemical and DFT study
Mohan A, Keerthi,Purushothaman, Aiswarya,Janardanan, Deepa,Haridas, Karickal R.
, (2021/10/12)
Eight azo derivatives with two donor groups- diphenylamine and N,N-dimethylphenyl, and four acceptor groups - 3-nitrophenyl, 4-nitrophenyl, 4-phenylcarboxylic acid, and 3-phenylcarboxylic acid, were synthesized and characterized using 1H-NMR an
Steric Effects in 4-Dimethylaminoazobenzenes and Their Protonated Species
Griffiths, John,Roospeikar, Ehizan,Thomasson, Jeffrey
, p. 3722 - 3739 (2007/10/02)
The effects of steric crowding in the amino-substituted ring of the 4-dimethylaminoazobenzene system have been examined by electronic absorption spectroscopy, using methyl substituents to induce loss of planarity.The most significant effects are produced by methyl groups ortho to the amino group.No evidence for electronic buttressing could be found in the case of dyes with electron withdrawing groups in the second benzene ring.The effects of steric crowding in the protonated forms of the dyes have also been examined.
