Beschreibung
The book deals with the synthetic and spectral studies of substituted 2-aminobenzenethiols and their conversion into phenothiazines, 4H-1, 4-benzothiazines and 1, 4- benzothiazino- (2,3-b)-phenothiazines. It also includes the oxidation behavior of 4H-1, 4-benzothiazines and the synthetic and spectral studies of substituted (1,4)- benzoxazino (2,3-b)-phenoxazines. Synthesis of 2-amino-3-methyl-5-nitrobenzenthiol by alkaline hydrolysis of 2-amino-4-methyl-6-nitrobenzothiazole. Synthesis of phenothiazines. by smiles rearrangement of substituted 2-formanido-2-nitrodiphenyl sulphides. The latter were obtained by the reaction of substituted 2-aminobenzenethiol with o-halonitrobenzenes and followed by formylation. Synthesis of 4H-1,4-benzothiazines by the condensation and oxidative cyclisation of 2-aminobenzenethiols with beta-diketone in DMSO. Substituted 1,2,4-trithenodithiazin-3-ones prepared by condensing substituted o-aminobenzenethiols with halogeno-p-benzoquinones (chloranil/bromanil) in presence of fused sodium acetate These were further condensed with some of different o-aminothiophenols yielding 1,4-benezothiazino-(2,3-b)-phenothiazins derivatives.
Autorenporträt
Dr Neha Mathur is working as Asso. Prof in PNKS Govt PG College Dausa. She serves as 25 yrs of teaching and research experience. She publishes 30 research papers is reputed journals. 3 Students awarded their Ph.D in her supervision and 5 students are working.She presented 50 papers in conferences. Dr A K Sharma Guest faculty MDSU Ajmer Raj India.
