Preparation of 1,1,2-trialkoxyethanes

Details Preparation of 1,1,2-trialkoxyethanes Preparation of 1,1,2-trialkoxyethanes

1989-08-25

1990-08-07

Mars, Howard T.

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

Organic compounds

Oxygen containing

568591, 549367, 549374, 549453, C07C 4148

Patent

active

049470051

ABSTRACT:
1,1,2-Trialkoxyethanes of the general formula I ##STR1## where R.sup.1 to R.sup.3 are each independently of the others C.sub.1 -C.sub.20 -alkyl or cycloalkyl, or R.sup.1 and R.sup.2 may be linked together to form a 5-, 6- or 7-membered ring, are prepared by reacting formaldehyde dialkyl acetals of the general formula II ##STR2## where R.sup.1 and R.sup.2 are each as defined above, or compounds which are capable of forming formaldehyde dialkyl acetals under the reaction conditions, with carbon monoxide, hydrogen and alkanols R.sup.3 OH under superatmospheric pressure at elevated temperature in the presence of a catalyst composed of a cobalt carbonyl compound and a promotor, wherein the promotor is an alkali metal, alkaline earth metal or ammonium salt of a protogenic compound having an acid constant K.sub.a of from 10.sup.-2 to 10.sup.-14, an alkali metal or alkaline earth metal hydroxide or an aminocarboxylic acid.

REFERENCES:
patent: 2449470 (1946-07-01), Gresham et al.
patent: 4755625 (1988-04-01), Maerkl et al.

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