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, 13031-04-4, name is 4,4-Dimethyldihydrofuran-2,3-dione, introducing its new discovery. Product Details of 13031-04-4
The reduction of alpha-iminoesters and alpha-iminoketones to the corresponding amino compounds was accomplished using ruthenium clay as the catalyst, at 75-100C and 600-900 psi H2. The same catalyst proved efficient for the reductive amination of alpha-ketoesters (100C, 600 psi H2). Diastereomeric excesses of up to 78% were obtained in the reductive amination reaction.
A catalyst does not appear in the overall stoichiometry of the reaction it catalyzes. In my other articles, you can also check out more blogs about 13031-04-4. Product Details of 13031-04-4
Reference：
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem