Chemical engineers work across a number of sectors, processes differ within each of these areas, but chemistry and chemical engineering roles are found throughout, and are directly involved in chemical products and materials. 139-65-1, Name is 4,4-Thiodianiline, belongs to thiazines compound, is a common compound. In a pantent, author is Arshad, Muhammad Nadeem, once mentioned the new application about 139-65-1, Synthetic Route of 139-65-1.
Synthesis and Structural Properties of N-(2-bromo-4-nitmphenyl)-3-methoxy-4-oxo-3,4-dihydro-2H-benzole 1,2] thiazine-3-carboxamide 1,1-dioxide: A Comparative Experimental and Quantum Chemical Study
N-(2-bromo-4-nitrophenyl)-3-methoxy-4-oxo-3,4-dihydro-2H-benzo[e] [1,2] thiazine-3-carboxamide-1,1-dioxide was synthesized in three step process with 86 % overall yield. The final structure of compound was evaluated by using spectroscoanalytical methods (H-1-NMR and FT-IR). Suitable crystals were obtained by slow evaporation method, and the final structure was confirmed unequivocally by performing single crystal X-ray diffraction (XRD) studies. Geometric parameters were calculated at B3LYP/6-3 1G (d, p) method with the help of Gaussian 09 software to validate spectrosopic and single crystal X-ray results. The computed data corroborated nicely with the experimental results (spectroscopic and X-ray). Frontier molecular orbitals (FMOs) and reactivity indices revealed the reactivity of benzothiazine derivative. Molecular electrostatic potential (MEP) was measured to understand the electro or nucleophilic nature of compound. Mulliken and natural population charge analysis (NBO) was carried out to prove inter and intramolecular hydrogen bonding.
The proportionality constant is the rate constant for the particular unimolecular reaction. the reaction rate is directly proportional to the concentration of the reactant. I hope my blog about 139-65-1 is helpful to your research. Synthetic Route of 139-65-1.
Reference:
Thiazine – an overview | ScienceDirect Topics,
,Thiazine | C4H5NS – PubChem