Process for the preparation of urethanes

Details Process for the preparation of urethanes Process for the preparation of urethanes

1979-06-06

1980-12-16

Trousof, Natalie

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

Organic compounds

Carboxylic acid esters

260455R, 2604655R, 560115, 560132, 560134, 560152, 560156, 560160, 560161, 560162, 560163, 560165, 560167, C07C125065

Patent

active

042399041

ABSTRACT:
A process for the preparation of urethanes by reacting a tertiary amine, an alcohol and carbon monoxide in the presence of a catalytic quantity of a copper salt, oxygen and a dehydrating agent is disclosed. The reaction is preferably carried out using a copper halide catalyst and dehydrating agents which combine with water to release the alcohol used in the preparation of the urethane product.

REFERENCES:
Saegusa et al., Bull. Chem. Soc., Japan, vol. 42, pp. 2610-2614, 1969.
B. Nefedor et al., Izc. Akad. Nauk. S.S.S.R., Ser Khim, No. 7, pp. 1536-1540, 1973.
Saegusa et al., Tetrahedron Letters, vol. 49, pp. 6125-6129, 1966.

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