Hydroformylation process

Details Hydroformylation process Hydroformylation process

2009-03-23

2009-11-03

Witherspoon, Sikarl A (Department: 1621)

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

Organic compounds

Oxygen containing

C568S862000, C502S155000, C502S166000

Reexamination Certificate

active

07612241

ABSTRACT:
A process for the production of 4-hydroxybutyraldehyde is described. The process comprises reacting allyl alcohol with a mixture of carbon monoxide and hydrogen in the presence of a solvent and a catalyst system comprising a rhodium complex and a substituted or unsubstituted 4,5-bis(di-n-alkylphosphino)xanthene. The process gives high yield of 4-hydroxybutyraldehyde compared to 3-hydroxy-2-methylpropionaldehyde.

REFERENCES:
patent: 4064145 (1977-12-01), Taylor
patent: 4215077 (1980-07-01), Matsumoto et al.
patent: 4238419 (1980-12-01), Matsumoto et al.
patent: 4306087 (1981-12-01), Matsumoto et al.
patent: 4567305 (1986-01-01), Matsumoto et al.
patent: 4678857 (1987-07-01), Dureanleau et al.
patent: 5290743 (1994-03-01), Chang
patent: 5504261 (1996-04-01), Mullin et al.
patent: 6225509 (2001-05-01), Dubner et al.
patent: 7271295 (2007-09-01), White et al.
patent: 7279606 (2007-10-01), White
patent: 06-279344 (1994-04-01), None
patent: 06-279345 (1994-04-01), None
Kottsieper et al. 1-Vinylimidazole- a versatile building block for the synthesis of cationic phosphines useful in ionic liquid biphasic catalysis. Journal of Molecular Catalysis A: Chemical (2001), vol. 175 (1-2), p. 285-288.

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