Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1978-05-18
1979-10-30
Hart, Charles N.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
210 60, 210 61, 210 62, 210 73R, 210 21, 260465R, 2605676M, B01D 1104
Patent
active
041727827
ABSTRACT:
An organic quaternary ammonium salt used as a catalyst in a reaction between a benzylnitrile and a halide in the presence of an alkali to obtain an .alpha.-alkyl- or .alpha.-phenyl-benzylnitrile, is recovered effectively from the reaction solution containing the .alpha.-alkyl- or .alpha.-phenyl-benzylnitrile, the alkali and the catalyst, by adding water to the reaction solution to make the alkali concentration of the water layer 10% by weight or below, and then separating the water layer containing the organic quaternary ammonium salt from the oil layer containing the .alpha.-alkyl- or .alpha.-phenyl-benzylnitrile.
REFERENCES:
patent: 2758991 (1956-08-01), Kretzers et al.
patent: 3413309 (1968-11-01), Makosza et al.
patent: 3959169 (1976-05-01), Hunt et al.
patent: 4012428 (1977-03-01), Ohno et al.
patent: 4056509 (1977-11-01), Verbrugge et al.
Fujiyoshi Kazuhiko
Masuko Fujio
Shiota Katsuyuki
Yamachika Hiroshi
Hart Charles N.
Sadowski David R.
Sumitomo Chemical Company Limited
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