Reference of 120266-80-0, As we all know, there are many different methods for the synthesis of a compound, and people can choose the synthesis method that suits their own laboratory according to the actual situation. 120266-80-0 name is 5-Aminoindolin-2-one hydrochloride, This compound is widely used in many fields, so it is necessary to find a new synthetic route. The downstream synthesis method of this compound is introduced below.
5-lsothiocyanato-1,3-dihydro-indol-2-one To a stirring solution of 5-amino-1,3-dihydro-indol-2-one hydrochloride (2 g, 10.83 mmol) and diisopropylethylamine (4.19 g, 32.49 mmol) in dry dichloromethane (100 ml) at 0 C under N2, thiophosgene (1.49 g, 10.83 mmol) in dichloromethane is added dropwise and stirred for 30 minutes. The reaction mixture is quenched with water (100 ml) and the layers are separated, the organic layer is washed with water (50 ml X2) and dried over anhydrous MgSO.to get the product as brown crystalline solid (2.03 g, 99.02 %); TLC: chloroform/methanol (9.5/0.5) Rf- 0.5; H-NMR (400 MHz, DMSO-d6): delta [ppm] 10.60 (s, 1H), 7.31 (s, 1H), 7.25 (d, J = 7.88 Hz, 1H), 6.82 (d, J = 8.24 Hz, 1H), 3.50 (s, 2H).
At the same time, in my other blogs, there are other synthetic methods of this type of compound, 5-Aminoindolin-2-one hydrochloride, and friends who are interested can also refer to it.