Patent ID: 7619084

Claim:
A process for preparing a 4-aminopyrimidine compound represented by the formula (3): wherein R 1 and R 2 each represent a hydrogen atom, methyl group, ethyl group, propyl group, butyl group, pentyl group, hexyl group, heptyl group, octyl group, nonyl group or decyl group where the propyl group, butyl group, pentyl group, hexyl group, heptyl group, octyl group, nonyl group and decyl group each contain isomers thereof, and R 4 represents a hydrogen atom, methyl group, ethyl group, propyl group, butyl group, pentyl group, hexyl group, heptyl group, octyl group, nonyl group or decyl group where the propyl group, butyl group, pentyl group, hexyl group, heptyl group, octyl group, nonyl group and decyl group each contain isomers thereof, which comprises reacting ammonia, a 3-substituted acrylonitrile compound represented by the formula (1): CR 1 (CN)=CR 2 Y (1) wherein R 1 and R 2 have the same meanings as defined above, and Y represents an amino group or OR, where R represents a hydrogen atom, methyl group, ethyl group, propyl group, butyl group, pentyl group, hexyl group, heptyl group, octyl group, nonyl group or decyl group where the propyl group, butyl group, pentyl group, hexyl group, heptyl group, octyl group, nonyl group and decyl group each contain isomers thereof, and an organic acid compound represented by the formula (2): (R 3 O) 3 CR 4 (2) wherein R 3 represents a methyl group, ethyl group, propyl group, butyl group, pentyl group, hexyl group, heptyl group, octyl group, nonyl group or decyl group where the propyl group, butyl group, pentyl group, hexyl group, heptyl group, octyl group, nonyl group and decyl group each contain isomers thereof, and R 4 has the same meaning as defined above.