Method of preparing fungicidal intermediates

Details Method of preparing fungicidal intermediates Method of preparing fungicidal intermediates

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

050915770

ABSTRACT:
N-n-propyl-N-(2,4,6-trichlorophenoxy)-ethyl amine is prepared by reacting 2-phenoxy ethanol with thionyl chloride in the presence of a catalytic amount of tetraalkyl ammonium halide optionally in the presence of a solvent to form 2-phenoxy ethyl chloride; selectively chlorinating the 2-phenoxy ethyl chloride with chlorine at a temperature from 0.degree. C. to 60.degree. C. in the presence of a catalytic amount if urea to form 2-(2,4,6-trichlorophenoxy)-ethyl chloride; reacting the 2-(2,4,6-trichlorophenoxy)-ethyl chloride with n-propyl amine at a temperature of from 20.degree. C. to 150.degree. C., optionally in the presence of water; and recovering the N-n-propyl-N-2-(2,4,6-trichlorophenoxy)-ethyl amine formed.

REFERENCES:
patent: 4877802 (1989-10-01), Wilson et al.

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