Process of making tetrahydrofuran

Details Process of making tetrahydrofuran Process of making tetrahydrofuran

1979-01-16

1980-09-09

Jiles, Henry R.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07D30708

Patent

active

042217261

ABSTRACT:
This invention provides a process for producing 1,4-butanediol by (1) selectively hydrogenating acrolein to a product mixture of allyl alcohol and residual acrolein in a 2:1 ratio, (2) converting the product mixture to acrolein diallyl acetal under acidic conditions, (3) selectively hydroformylating the acrolein diallyl acetal to a trialdehyde, and (4) reacting the trialdehyde under substantially neutral hydrolysis/hydrogenation conditions to yield 1,4-butanediol.
Acrolein is converted into tetrahydrofuran employing the process conditions described above, except that the step (4) hydrolysis/hydrogenation reaction is conducted under acidic conditions.

REFERENCES:
patent: 3929915 (1975-12-01), Cumbo et al.
patent: 4105677 (1978-08-01), Taylor

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