Reference of 132898-96-5, 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. 132898-96-5 name is 2,3-Dioxoindoline-5-sulfonyl chloride, 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.
Morpholine (1.1 mL, 12.2 mmol) was added to a solution of 2,3-diupsilonxoLndoline-5-sulfonyl chloride (3.0 g, 12.2 mmol) and diibopropylethyl amine (7,0 mL, 40 mmol) m 1 :1 CH2CWTHF ( 120 mL at -50 C. The solution was warmed to room temperature and stirred at that temperature for 12 hours. The reaction mixture was concentrated, then dissolved m CHjCl2. and washed with saturated NaHCO3 and brine. The organic layer was dried (MgSO4), filtered, then concentrated, and purified by flash chromatography on silica gel (5% MeOH in CH:CU) to provide 2.4 g of the product
At the same time, in my other blogs, there are other synthetic methods of this type of compound, 2,3-Dioxoindoline-5-sulfonyl chloride, and friends who are interested can also refer to it.
Reference:
Patent; WYETH LLC (FORMERLY KNOWN AS WYETH); DOLLINGS, Paul, Jeffrey; DONNELL, Andrew, Forrest; GILBERT, Adam, Matthew; ZHANG, Minsheng; HARRISON, Boyd, Lynn; STANTON III, Charles, John; O’NEIL, Steven, Victor; HAVRAN, Lisa, Marie; CHONG, Dan, Chaekoo; WO2010/77839; (2010); A1;,
Indoline – Wikipedia,
Indoline | C8H9N – PubChem