反应详情

First, 0.45 g of 5-(2,6-dichloro-4-(3,3-dichloro-2-propenyloxy)phenoxy)pentyloxyacetone oxime, 0.12 g of triethylamine, and 10 ml of tetrahydrofuran are placed in a reaction vessel, to which 0.16 g of N,N-diethylcarbamoyl chloride is slowly added dropwise with stirring under ice cooling. After completion of the addition, the reaction mixture is further stirred at room temperature for 30 minutes, poured into diluted hydrochloric acid, and extracted twice with diethyl ether. The diethyl ether layers are combined, washed with water, dried over anhydrous magnesium sulfate, and concentrated to give a crude product. This crude product is subjected to silica gel chromatography, which affords 5-(2,6-dichloro-4-(3,3-dichloro-2-propenyloxy)phenoxy)pentyloxyacetone O-(N,N-diethylcarbamoyl)oxime.

1. additionis slowly added dropwise
2. additionAfter completion of the addition
3. stirringthe reaction mixture is further stirred at room temperature for 30 minutes
4. extractionextracted twice with diethyl ether
5. washwashed with water
6. dry with materialdried over anhydrous magnesium sulfate
7. concentrationconcentrated
8. customto give a crude product