Process for the preparation of cyclopropylmethyl-n-propylamine

Details Process for the preparation of cyclopropylmethyl-n-propylamine Process for the preparation of cyclopropylmethyl-n-propylamine

1980-01-10

1981-06-23

Doll, John

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

Organic compounds

Amino nitrogen containing

26034611, 568443, C07C 8508

Patent

active

042752388

ABSTRACT:
Cyclopropylmethyl-N-n-propylamine is prepared by (a) cyclizing 1,4-butanediol by a cobalt-containing catalyst to 2,3-dihydrofuran at a temperature in the range of about 210.degree.-235.degree. C.; (b) thermally isomerizing the 2,3-dihydrofuran to cyclopropanecarboxaldehyde in an open-reactor columm; and (c) reductively alkylating the cyclopropanecarboxaldehyde with n-propylamine and hydrogen in the presence of a platinum catalyst.

REFERENCES:
patent: 2993910 (1961-07-01), Dimroth et al.
patent: 3597438 (1971-08-01), Brake
Wilson, "JACS", vol. 69, pp. 3002-3004, (1947).

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