Ruthenium-cobalt carbonyl catalysts for the dealkoxyhydroxymethy

Details Ruthenium-cobalt carbonyl catalysts for the dealkoxyhydroxymethy Ruthenium-cobalt carbonyl catalysts for the dealkoxyhydroxymethy

1985-10-02

1987-03-24

Shine, W. J.

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Organic compound containing

502161, B01J 3112

Patent

active

046525424

ABSTRACT:
The cobalt carbonyl catalyst R.sup.5 CCo.sub.3 (CO).sub.9, desirably with Ru.sub.3 (CO).sub.12, wherein R.sup.5 is hydrogen; alkyl, preferably C.sub.1-5 lower alkyl; cycloalkyl or substituted cycloalkyl; cycloalkenyl, such as cyclohexenyl or cyclooctenyl; C.sub.1-12 alkoxy, such as methoxy or propoxy; aryl or alkyl-, cycloalkyl-, alkoxy-, halo-, or cyano-substituted aryl; cyano; or a silyl carbyne moiety of the formula R.sub.3.sup.6 Si, wherein R.sup.6 is alkyl or aryl, effectively catalyzes the dealkoxyhydroxymethylation of aldehyde acetals to form glycol monoethers. Methylal, for example, may be reacted with syngas; i.e., CO and H.sub.2, in the presence of this catalyst system to form the corresponding ethylene glycol monomethyl ether.

REFERENCES:
patent: 4062898 (1977-12-01), Dubeck et al.
patent: 4346020 (1982-08-01), Pretzer et al.
patent: 4390734 (1983-06-01), Knifton

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