Reaction #312236
ord-bca88a66df8d41ddbacf83a453ec7cd7
Reaction equation
Reagents
None
Conditions
Detailed conditions
See reaction.notes.procedure_details.
Procedure
A mixture of caprolactam (56.5 g; 0.5 mole) and o-phenylene diamine (54 g; 0.5 mole) was heated with p-toluene sulfonic acid (4.3 g; 0.025 mole) at 200°-225° for 7 hrs. under nitrogen. A quantitative yield of 2-(5-aminopentyl) benzimidazole was obtained.