N-tert-butyl-N-ethoxalyl-o-phenylenediamine → 1-Tert-butyl-1,2,3,4-tetrahydro-2,3-dioxoquinoxaline
Reaction equation
[C:1]([N:5]([C:13]([C:15]([O:17]CC)=O)=[O:14])[C:6]1[CH:11]=[CH:10][CH:9]=[CH:8][C:7]=1[NH2:12])([CH3:4])([CH3:3])[CH3:2]>CCOCC>[C:1]([N:5]1[C:6]2[C:7](=[CH:8][CH:9]=[CH:10][CH:11]=2)[NH:12][C:15](=[O:17])[C:13]1=[O:14])([CH3:4])([CH3:3])[CH3:2]Participants
3
Reactant 1
Product 1
Reagents, catalysts & solvents 1
Procedure
The neat crystals of N-tert-butyl-N-ethoxalyl-o-phenylene diamine (88 g) were heated to 100° C. for 4 h. The crude product hereby deposited from the melt as crystals. After cooling to ambient temperature the solid taken in ether and the product was filtered off as white crystals, m.p. >300° C.
Workup
- filtrationthe product was filtered off as white crystals, m.p. >300° C.
Sources & evidence
- ORD record
- ord-0361206192cb4eeea5b97e2deaa46f71
- Source dataset
- uspto-grants-1991_03
- Patent number
- US04999353
Reaction notes
Loading…