ヨードベンゾアントロン類の非対称Ullmann反応
芳香族多環化合物のUllmann反応に関する研究 (第6報)
1975 年 33 巻 4 号 p. 274-276
詳細
1975 年 33 巻 4 号 p. 274-276
By unsymmetrical Ullmann reaction of 3-iodobenzanthrone (1) and 3, 9-diiodobenzanthrone (2), new unsymmetrical benzanthrone trimer (5) was obtained in 16% yield, as yellow crystals. 3- (3-Benzanthronyl) violanthrone (7) was obtained in quantitative yield by alkali condensation of (5).
3, 9'-Dibenzanthronyl (6) was obtained from (2) and 9-iodobenzanthrone (3) in 7% yield by the same procedure.
