Alpha-carboline 99% 1-Azacarbazole CAS 244-76-8

   By dissolving 1-bromo-2 -(2, 2-dibromovinyl) benzene or its derivatives, ammonia and A, β-unsaturated aldehydes in organic solvent, and then adding catalyst transition metal salts and additives, 9H-pyridine and [2,3-b] indole compounds are prepared in the presence of air at 60-100℃. The invention Chemicalbook synthesis process for a pot of multicomponent tandem reaction, simple operation, to avoid the due to many kinds of reagents used in the multi-step reactions and purification of each step reaction intermediates and causes the waste of resources and environmental pollution, for 9 - H [2, 3 - b] pyridine and indole compounds synthesis provides an economical and practical and green New Zealand Method.    9H-pyridine [2, 3-b] indole used as semiconductor block, photoelectric materials, synthetic materials intermediates.…