تفاعل #485955

معادلة التفاعل

hydroxymethylphosphonic acid diethylester

1,4-dichloro-2-butyne

sodium hydride

ammonium chloride

→

title product

(4-Chloro-2-butynyloxy)methylphosphonic acid diethylester

المذيبات

tetrahydrofuran

ظروف التفاعل

المعالجة

1. 1
   workup.ADDITIONis added in portions at 0° C
2. 2
   استخلاصextracted with diethylether

الإجراء التجريبي

To a mixture of hydroxymethylphosphonic acid diethylester (3.35 g, 20 mmol), 1,4-dichloro-2-butyne (3.8 g, 30 mmol) and tetra-n-butylammonium iodide,(0.75 g, 2 mmol) in anhydrous tetrahydrofuran (100 ml), sodium hydride (0.95 g, 24 mmol, 60% in oil) is added in portions at 0° C. The resulting mixture is stirred overnight at 0° C. Then the reaction mixture is stirred overnight at 20° C., hydrolyzed with a saturated solution of ammonium chloride and extracted with diethylether. The title product is obtained by flash chromatography on silica gel (2.3 g, 30%).

المصدر