Chemistry: electrical and wave energy – Processes and products – Processes of treating materials by wave energy
Patent
1990-09-21
1992-04-14
Niebling, John
Chemistry: electrical and wave energy
Processes and products
Processes of treating materials by wave energy
C07C 2900, C07C 3700
Patent
active
051045044
ABSTRACT:
A efficient photochemical method for the preparation of an alcohol compound, e.g., benzyl alcohol, from a non-olefin hydrocarbon compound, e.g., benzene, was proposed in which a mixture of the non-olefin hydrocarbon compound as the starting material and a hydrogen donor compound, which is a cycloalkane of 5 to 16 carbon atoms in a molecule, e.g., cyclooctane, or an aliphatic alcohol of up to 10 carbon atoms in a molecule, e.g., isopropyl alcohol, is irradiated with light under an atmosphere of carbon monoxide in the presence of a complex compound of rhodium or iridium, of which at least one of the ligands is preferably a monophosphine or bisphosphine compound. The method is advantageous in that the reaction can proceed under mild reaction conditions and that the amount of the aldehyde compound formed in the reaction mixture as a by-product is very small as compared with conventional methods so as to greatly facilitate isolation of the desired alcohol product from the reaction mixture.
REFERENCES:
patent: 4522932 (1985-06-01), Mitchell, III
patent: 4900413 (1990-02-01), Sakakura et al.
Abe Fujio
Sakakura Toshiyasu
Tanaka Masato
Agency of Industrial Science and Technology
Marquis Steven P.
Niebling John
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