Process for the preparation of ethane-1,2-diphosphinic acid dies

Details Process for the preparation of ethane-1,2-diphosphinic acid dies Process for the preparation of ethane-1,2-diphosphinic acid dies

1974-01-17

1976-02-17

Sebastian, Leland A.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

B01J 110

Patent

active

039390500

ABSTRACT:
A process for the preparation of ethane-1,2-diphosphinic acid diesters of the formula ##EQU1## where R.sub.1 represents alkyl, phenyl and/or phenalkyl groups having from 1 to 18 carbon atoms and R.sub.2 alkyl groups having from 1 to 18 carbon atoms, which may be optionally substituted by halogen atoms, which comprises reacting phosphonous acid esters of the formula ##EQU2## where R.sub.1 and R.sub.2 are as defined above, with acetylene using high-energy irradiation.

REFERENCES:
patent: 3673285 (1972-06-01), Lin
patent: 3681219 (1972-08-01), Oswald

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