Cobalt-catalyzed process for preparing 1, 3-propanediol from ety

Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing

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568454, 568483, C07C 2700

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active

059818085

ABSTRACT:
1,3-Propanediol is prepared in a process which involves reacting ethylene oxide with carbon monoxide and hydrogen in an essentially non-water-miscible solvent in the presence of a non-phosphine-ligated cobalt catalyst and a catalyst promoter to produce an intermediate product mixture containing 3-hydroxypropanal in an amount less than 15 wt %; extracting the 3-hydroxypropanal from the intermediate product mixture into an aqueous liquid at a temperature less than about 100.degree. C. and separating the aqueous phase containing 3-hydroxypropanal from the organic phase containing cobalt catalyst; hydrogenating the 3-hydroxypropanal in the aqueous phase to 1,3-propanediol; and recovering the 1,3-propanediol.
The process enables the production of 1,3-propanediol in high yield and selectivity without the use of a phosphine ligand-modified cobalt catalyst.

REFERENCES:
patent: 3168553 (1965-02-01), Slaugh
patent: 3456017 (1969-07-01), Smith
patent: 3463819 (1969-08-01), Smith
patent: 3687981 (1972-08-01), Lawrence
patent: 4137240 (1979-01-01), Peterson
patent: 4255279 (1981-03-01), Spohn
patent: 4404119 (1983-09-01), Lagace
patent: 4873378 (1989-10-01), Murphy
patent: 4873379 (1989-10-01), Murphy
patent: 4973741 (1990-11-01), Beavers
patent: 5030766 (1991-07-01), Briggs
patent: 5053562 (1991-10-01), Tau
patent: 5210318 (1993-05-01), Briggs
patent: 5225387 (1993-07-01), Briggs
patent: 5256827 (1993-10-01), Slaugh
patent: 5321168 (1994-06-01), Roussel
patent: 5504261 (1996-04-01), Mullin et al.
Falbe, Carbon Monoxide In Organic Synthesis, Springer-Verlag (1970), pp. 14-15.
Falbe, New Synthesis With Carbon Monoxide, Springer-Verlag (1980), p. 131.

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