Thermolysis of 5-Azido-4-arylpyridazin-3(2H)-ones: An Efficient and Versatile Synthesis of Pyridazino[4,5-b]indoles
摘要:
5-Azido-4-arylpyridazin-3(2H)-ones, which are easily available from 4,5-dihalopyridazin-3(2H)-ones in few steps, were found to undergo in high yields a thermally induced cyclization into pyridazino[4,5-b]indole derivatives ("azacarbolinones") by formation of the N-5/C-5a bond via a nitrene insertion process. This new method is complementary to a previously reported pathway in which the C-4a/N-5 bond of the ring system is formed.
Gueven, Alaeattin; Jones, R. Alan, Journal of Chemical Research, Miniprint, 1993, # 9, p. 2411 - 2428
作者:Gueven, Alaeattin、Jones, R. Alan
DOI:——
日期:——
Thermolysis of 5-Azido-4-arylpyridazin-3(2H)-ones: An Efficient and Versatile Synthesis of Pyridazino[4,5-b]indoles
作者:Norbert Haider、Andrea Wobus
DOI:10.3987/com-06-10879
日期:——
5-Azido-4-arylpyridazin-3(2H)-ones, which are easily available from 4,5-dihalopyridazin-3(2H)-ones in few steps, were found to undergo in high yields a thermally induced cyclization into pyridazino[4,5-b]indole derivatives ("azacarbolinones") by formation of the N-5/C-5a bond via a nitrene insertion process. This new method is complementary to a previously reported pathway in which the C-4a/N-5 bond of the ring system is formed.