Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Patent
1982-02-10
1983-11-22
Evans, J. E.
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
568840, C07C 31125, C07C 2917
Patent
active
044170793
ABSTRACT:
n-Octanol is obtained by (i) reacting butadiene with water in a solution containing water, a carbonate and/or bicarbonate salt of a monodentate tertiary amine, and sulpholane in the presence of a palladium compound and a hydrophilic monodentate phosphine, to form 2,7-octadien-1-ol; (ii) extracting 2,7-octadien-1-ol from at least part of the reaction mixture obtained in step (i) with a saturated aliphatic hydrocarbon, a monoolefinic hydrocarbon or an alicyclic hydrocarbon, and recycling the extraction residue to the 2,7-octadien-1-ol synthesis step (i); (iii) subjecting the extract layer containing 2,7-octadien-1-ol as obtained in step (ii) to distillation to distill off a large proportion of the extracting solvent therefrom, followed by distillation in the presence of water, whereby the extracting solvent remaining is distilled off in the form of an azeotropic mixture with water, to obtain a distillation residue; (iv) recovering 2,7-octadien-1-ol from the distillation residue obtained in step (iii) by distillation; (v) hydrogenating the 2,7-octadien-1-ol obtained in step (iv) in the presence of a hydrogenation catalyst to obtain n-octanol; and (iv) recovering n-octanol from the hydrogenation reaction mixture by distillation.
REFERENCES:
patent: 3407224 (1968-10-01), Smutny
patent: 3670032 (1972-06-01), Romanelli
patent: 3887627 (1975-06-01), Romanelli
patent: 3992456 (1976-11-01), Atkins et al.
patent: 4142060 (1979-02-01), Kuntz
Tamura Masuhiko
Yoshimura Noriaki
Evans J. E.
Kuraray Company Limited
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