A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, SDS of cas: 4769-97-5, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 4769-97-5, Name is 4-Nitroindole, molecular formula is C8H6N2O2. In a Patent, authors is ,once mentioned of 4769-97-5
The present invention discloses a pharmaceutical intermediate 4 – nitro indole preparation method, specifically comprises the following steps: first to methyl benzene sulfonic acid, citric acid, cerium nitrate as the raw material, and by the reaction of the alkaline solution containing the methyl benzene sulfonic acid, citric acid of cerium complex compositions, then taking it as catalyst catalytic 2 – methyl – 3 – nitroaniline and original carboxylic acid triethyl phosphite to make N – (2 – methyl – 3 – nitrophenyl) b oxygen radical armor imine, finally it with diethyl oxalate, potassium acetate to obtain the target product. The method of the invention mild reaction conditions, the prepared yield of the object product. (by machine translation)
I hope this article can help some friends in scientific research. I am very proud of our efforts over the past few months and hope to 4769-97-5, help many people in the next few years.SDS of cas: 4769-97-5
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