Ammonia → 2-Methyl-N-(2-methylpropylidene)-1-propanamine

Temperature

-15 °C

1000g isobutyraldehyde and about 100 g of a commercially available nickel containing carrier catalyst (containing about 52 to 53% by weight nickel, and employing chromium (3)-oxide as activator) are introduced into a 2 l three-necked flask, equipped with a gas inlet tube, a stirrer and a reflux condensor, and cooled to -15° C. Hydrogen and ammonia are introduced into the resulting suspension in a volume ratio of 1 : 1 and at a temperature of 90° C. 160 l of gas are introduced per hour. Altogether, 240 l hydrogen and 240 l gaseous ammonia are introduced. After termination of the reaction, the catalyst is separated by filtration. 889 g isobutylidene -- isobutylamine are obtained.

1. additionare introduced into a 2 l three-necked flask
2. customequipped with a gas inlet tube, a stirrer
3. customAfter termination of the reaction
4. customthe catalyst is separated by filtration

ORD record

ord-4b424334f7f34067b02091a588876cb7

Source dataset

uspto-grants-1977_01

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US04003921