Method of preparing phenoxy ethers for use as agrochemical inter

Details Method of preparing phenoxy ethers for use as agrochemical inter Method of preparing phenoxy ethers for use as agrochemical inter

1990-06-14

1992-02-25

Hollrah, Glennon H.

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

564354, 564353, 568630, 568655, 568656, C07C21302, C07C21730

Patent

active

050915789

ABSTRACT:
N-n-propyl-N-2-(2,4,6-trichlorophenoxy)-ethylamine is prepared by selectively chlorinating 2-phenoxy ethanol by reacting it with chlorine either in the presence of hydrogen chloride at a temperature of from -10.degree. C. to 50.degree. C. or in the presence of urea at a temperature of from 20.degree. C. to 55.degree. C. in a water/carbon tetrachloride solvent mixture to form 2-(2,4,6-trichlorophenoxy)ethanol; reacting the 2-(2,4,6-trichlorophenoxy)ethanol with thionyl chloride in the presence of a catalytic amount of tetraalkyl ammonium chloride, optionally in the presence of a solvent to form 2-(2,4,6-trichlorophenoxy)ethyl chloride; and reacting the 2-(2,4,6-trichlorophenoxy) ethyl chloride with n-propylamine at a temperature of from 20.degree. C. to 150.degree. C., optionally in the presence of water to form N-n-propyl-N-2-(2,4,6-trichlorophenoxy) ethyl amine.

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