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ChemicalBook CAS DataBase List TETRAHYDRO-2H-PYRAN-4-YLACETYL CHLORIDE
40500-05-8

TETRAHYDRO-2H-PYRAN-4-YLACETYL CHLORIDE synthesis

2synthesis methods
-

Yield:40500-05-8 100%

Reaction Conditions:

with oxalyl dichloride;N,N-dimethyl-formamide in dichloromethane at 0 - 20; for 16 h;Inert atmosphere;

Steps:

20 Preparation 20: 2-(tetrahydro-2H-pyran-4-yl)acetyl chloride

A solution of 2-(tetrahydro-2H-pyran-4-yl)acetic acid (17.3 g, 120 mmol) in DCM (400 ml_) and DMF (1 ml_) at 0 °C was treated with oxalyl chloride (30.5 g, 240 mmol). The mixture was then warmed to 20 °C and stirred for 16 h. The mixture was concentrated to give the title compound (19.5 g, quant.).

References:

WO2021/124155,2021,A1 Location in patent:Page/Page column 53; 64

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