In homogeneous catalysis, the catalyst is in the same phase as the reactant. The number of collisions between reactants and catalyst is at a maximum.In a patent, 538-58-9, name is 1,5-Diphenylpenta-1,4-dien-3-one, introducing its new discovery. Quality Control of 1,5-Diphenylpenta-1,4-dien-3-one
Conversion of bis(o-nitrophenyl)disulfides to heterocycles containing sulfur and nitrogen by the action of samarium diiodide
Treatment of bis(o-nitrophenyl)disulfides 1 with SmI2 led to simultaneous reduction of nitro groups and reductive cleavage of S-S bonds as well as the formation of the active intermediates 2. The intermediates 2 reacted smoothly with aldehydes or ketones, acid chlorides or anhydrides, alpha-bromoketones, and alpha,beta-unsaturated ketones at room temperature to afford the desired benzothiazolines 3, benzothiazoles 4, 2H-1,4-benzothiazines 5, and 2,3-dihydro-1,5-benzothiazepines 6, respectively, in moderate to high yields under mild and neutral conditions.
We¡¯ll also look at important developments in the pharmaceutical industry because understanding organic chemistry is important in understanding health, medicine, the role of 538-58-9, and how the biochemistry of the body works.Quality Control of 1,5-Diphenylpenta-1,4-dien-3-one
Reference£º
Synthesis and Crystal Structure of a Chiral?C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur¨Cnitrogen¨Coxygen ligand derived from aminothiourea and sodium?D-camphor-¦Â-sulfonate