been prepared in high yields by the reaction of arylnitrile with NaHSe. Treatment of arylselenocarboxamides (4 mmol) with aqueous Na2PdCl4 (1 mmol) in acetone at room temperature resulted in the formation of 3,5-diaryl-1,2,4-selenadiazoles as unexpected products together with palladium(II) complexes containing 3,5-diaryl-1,2,4-selenadiazoles. Treatment of arylselenocarboxamides (4 mmol) with catalytic
许多新的和已知的芳基
硒甲酰胺(即Ar – C(Se)NH 2; Ar = C 6 H 5(1),4-BrC 6 H 4(2),2-MeOC 6 H 4(3),4 -MeOC 6 H 4(4),4-MeSC 6 H 4(5),4-EtOC 6 H 4(6),2,3-(MeO)2 C 6 H 3(7),3,4-( MeO)2 C 6 H3(8),3,5-(MeO)2 C 6 H 3(9),4-PhC 6 H 4(10),6-MeOC 10 H 6(11),4-MeOC 10 H 6(12) )已通过芳腈与NaHSe反应以高收率制备。Na 2 PdCl 4
水溶液处理芳基
硒甲酰胺(4 mmol)(1 mmol)在室温下的
丙酮溶液中导致形成3,5-二芳基-1,2,4-
硒代二唑类化合物,以及包含3,5-二芳基-1,2,4-的
钯(II)配合物,出乎意料亚
硒二唑。用催化量的Na 2 PdCl 4(10 -3