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, 1912-48-7, name is 1-Methyl-3-indoleacetic acid, introducing its new discovery. SDS of cas: 1912-48-7
3-Indolyl-, (N-methyl-3-indolyl)-, and (N-methyl-2-methyl-3-indolyl)acetic acids are quantitatively alpha-lithiated directly with n-BuLi, while methyl (N-methyl-3-indolyl)acetate is quantitatively alpha-lithiated with lithium diisopropylamide (LDA) at -78 deg C in THF.These useful synthons react readily with electrophiles such as alkyl halides, chlorosilanes, and ketones to afford the respective alpha-alkyl derivatives 1, ketene silyl acetals 2, and beta-hydroxy acids 3.Photosensitized oxygenation of the ketene silyl acetals 2 affords 1,2-diox-4-ene products through (2 + 4) cycloaddition with singlet oxygen.
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 1912-48-7 is helpful to your research. SDS of cas: 1912-48-7
Reference：
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles