Environmentally safe method of preparing a certain dialkylamine

Details Environmentally safe method of preparing a certain dialkylamine Environmentally safe method of preparing a certain dialkylamine

1990-06-14

1992-03-03

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

050935267

ABSTRACT:
N-n-propyl-N-2-(2,4,6-trichlorophenoxy) ethyl amine is prepared by reacting 2-phenoxy ethanol with thionyl chloride in the presence of a catalytic amount of tetra-alkyl ammonium halide optionally in the presence of a solvent to form 2-phenoxy ethyl chloride; reacting the 2-phenoxy ethyl chloride with n-propylamine at a temperature of from 50.degree. C. to 150.degree. C. optionally in the presence of a solvent to form N-n-propyl-N-2-phenoxy-ethyl amine; selectively chlorinating N-n-propyl-N-2-phenoxyethyl amine with chlorine in the presence of a solvent; and recovering the N-n-propyl-N-2-(2,4,6-trichlorophenoxy) ethyl amine formed.

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