Manufacture of unsymmetric monoacetals of aromatic 1,2-diketones

Details Manufacture of unsymmetric monoacetals of aromatic 1,2-diketones Manufacture of unsymmetric monoacetals of aromatic 1,2-diketones

1977-04-14

1979-03-13

Turer, Richard B.

Chemistry: electrical and wave energy

Processes and products

Processes of treating materials by wave energy

96115P, 20415915, 20415916, 20415918, 20415919, 20415924, 260837R, 260865, 260590D, 427 54, 428481, 428413, C08F 246, C08F 400

Patent

active

041441567

ABSTRACT:
Unsymmetrical monoketals of aromatic 1,2-diketones ##STR1## wherein R.sup.1 and R.sup.2 are different radicals, are manufactured by reacting the corresponding aromatic 1,2-diketones, in an organic solvent, with an acid ester (R.sup.1).sub.n X as alkylating agent and an alcoholate (R.sup.2 O).sub.m Me, where n and m are integers from 1 to 3, X is an acid radical and Me is a metal of main groups 1 to 3 of the periodic table of the elements. The resulting diketone monoacetals are particularly suitable for use as photoinitiators in photopolymerizable compositions.

REFERENCES:
patent: 3715293 (1973-02-01), Sandner et al.
patent: 3998712 (1976-12-01), Hickmann et al.
patent: 4007209 (1977-02-01), Hickmann et al.
patent: 4037021 (1977-07-01), Adams

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