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ChemicalBook CAS DataBase List 2,2-DIFLUOROETHYL P-TOLUENESULFONATE
135206-84-7

2,2-DIFLUOROETHYL P-TOLUENESULFONATE synthesis

2synthesis methods
-

Yield: 100%

Reaction Conditions:

with triethylamine in dichloromethane at 0; for 0.5 h;

Steps:

1 Step 1: 2,2-difluoroethyl 4-methylbenzenesulfonate (A1)
To a solution of compound 2,2-difluoroethanol (8.2 g, 100 mmol) in DCM (200 mL) at 0 oC was added Et3N (15.1 g, 150 mmol) and TsCl (19.0 g, 100 mmol). The resulting mixture was stirred at 0 oC for 0.5 h, then poured into water and extracted with DCM (200 mL x 3). The combined organic layer was dried over MgSO4, filtered and concentrated in vacuo to give the title compound (23.6 g, 100%) as colorless oil without further purification.

References:

MERCK SHARP & DOHME CORP.;KUDUK, Scott, D.;LIVERTON, Nigel;LUO, Yunfu WO2016/89721, 2016, A1 Location in patent:Page/Page column 33

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