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, 59434-19-4, name is 4-Aminophthalide, introducing its new discovery. Quality Control of 4-Aminophthalide
The nitrophthalides 3a-d aimed as intermediates in the synthesis of the title compounds 6a-d were obtained via regioselective reduction of 3-nitrophthalic anhydride 1 or by nitration of phthalide and 3,3-dimethylphthalide, respectively.Reductive methylation of the nitro groups afforded the dimethylaminophthalides 5a-d which in turn were reacted with MeMgI or in the case of 5d reduced by LiAlH4 leading finally to the title compounds.
We’ll also look at important developments in the pharmaceutical industry because understanding organic chemistry is important in understanding health, medicine, the role of 59434-19-4, and how the biochemistry of the body works.Quality Control of 4-Aminophthalide
Reference：
Benzofuran – Wikipedia,
Benzofuran | C8H1359O – PubChem