Organic compounds -- part of the class 532-570 series – Organic compounds – Amino nitrogen containing
Patent
1989-04-07
1990-10-30
Raymond, Richard L.
Organic compounds -- part of the class 532-570 series
Organic compounds
Amino nitrogen containing
558452, 558455, 564491, C07C20926, C07C20948, C07C20960
Patent
active
049670069
ABSTRACT:
This invention relates to a process for the coproduction of propanediamines and alkylated aminopropanediamines. The process contemplates an initial cyanoethylation of ammonia under conditions for producing aminopropionitrile and modest levels of iminobispropionitrile. After separation of the iminobispropionitrile from the aminopropionitrile, the process involves the catalytic reductive alkylation of the iminobispropionitrile by reaction with an aldehyde in the presence of hydrogen to form the alkylated iminobispropionitrile followed by the catalytic hydrogenation of the nitrile group in aminopropionnitrile and iminobispropionitrile to the amine.
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Air Products and Chemicals Inc.
Brewer Russell L.
Marsh William F.
O'Sullivan P.
Raymond Richard L.
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