Synthetic Route of 1254319-51-1,Some common heterocyclic compound, 1254319-51-1, name is 6-Bromo-2-methylisoindolin-1-one, molecular formula is C9H8BrNO, traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.
A stirred solution of 2,6-bis(benzyloxy)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2- yl)pyridine 25-1 (2.19 g, 5.25 mmol) and 6-bromo-2-methylisoindolin-1-one (31-1) (474 mg, 2.10 mmol) in dioxane/water (30 mL), in a sealed tube, was degassed for 10 minutes under an argon atmosphere. PdCl2(dppf)-DCM (153 mg, 210 mumol) was added and the reaction was heated to 80 C for 10 h. TLC was checked in 30% ethyl acetate/hexane, which showed the complete consumption of starting material and formation of the desired spot at rf 0.4 in 30% ethylacetate- hexane. The reaction mixture was diluted with ethyl acetate, washed with water. The layers were separated and the organic layer was concentrated under reduced pressure. The crude residue was purified using combiflash (50% ethyl acetate/hexane) and concentrated to afford 6-(2,6-Bis- benzyloxy-pyridin-3-yl)-2-methyl-2,3-dihydro-isoindol-1-one (31-1) (725 mg, 1.66 mmol, 79% yield). LC MS: ES+ 437.2.
The synthetic route of 1254319-51-1 has been constantly updated, and we look forward to future research findings.
Reference:
Patent; C4 THERAPEUTICS, INC.; PHILLIPS, Andrew, J.; NASVESCHUK, Chris, G.; HENDERSON, James, A.; LIANG, Yanke; HE, Minsheng; LAZARSKI, Kiel; VEITS, Gesine, Kerstin; VORA, Harit, U.; (794 pag.)WO2017/197046; (2017); A1;,
Indoline – Wikipedia,
Indoline | C8H9N – PubChem