Synthesis of Pyrano[4,3-b]benzodiazepine and Pyrano[4,3-b]quinoline Using 4-Chloro-3-(1-chlorovinyl)-6-methyl-2H-pyran-2-one and 4-Chloro-3-ethynyl-6-methyl-2H-pyran-2-one
摘要:
Reaction of dichloropyrone (1) and chloroethynylpyrone (2) with o-phenylenediamine and m-phenylenediamine give pyranobenzodiazepine (3) and pyranoquinoline (5), respectively. Treatment of 1 and 2 with p-phenylenediamine yield aminoethynylpyrone (6), which is a key product in the reaction of 1 and 2 with phenylenediamines.
Synthesis of Pyrano[4,3-b]benzodiazepine and Pyrano[4,3-b]quinoline Using 4-Chloro-3-(1-chlorovinyl)-6-methyl-2H-pyran-2-one and 4-Chloro-3-ethynyl-6-methyl-2H-pyran-2-one
作者:Yutaka Azuma、Atsuko Sato、Mieko Morone
DOI:10.3987/com-92-s(t)74
日期:——
Reaction of dichloropyrone (1) and chloroethynylpyrone (2) with o-phenylenediamine and m-phenylenediamine give pyranobenzodiazepine (3) and pyranoquinoline (5), respectively. Treatment of 1 and 2 with p-phenylenediamine yield aminoethynylpyrone (6), which is a key product in the reaction of 1 and 2 with phenylenediamines.
Synthesis of 6-, 7-, 8-, or 9-Substituted 1H-Pyrano[4,3-b]quinoline Derivatives by the Cyclization of 3-Acetyl-4-arylamino-2H-pyran-2-one Derivatives