2-Alkyl-2-phenyl-3,3-dimethylindolines, obtained by 1,2 organolithium addition to 2-phenyl-3,3-dimethyl-3H-indole, are converted into a new series of aminoxyls by oxidation with m-chloroperoxybenzoic acid. Attempts to synthesise, in a similar way, suitable precursors such as 1,2-dihydro-2-phenyl-2-alkylbenzothiazole, 1,2-dihydro-2-phenyl-2-alkylbenzoxazole and 1,2-dihydro-2-phenyl-2-alkyl-4H-3,1-benzoxazin-4-one for other new aminoxyls failed. In fact, 2-phenylbenzothiazole, 2-phenylbenzoxazole and 2-phenyl-4H-3,1-benzoxazin-4-one react with organolithium reagents affording products deriving from ring opening. Crystal structures of 2,3-dimethyl-3-phenyl-3H-indole and bis(2-triphenylmethylaminophenyl) disulfide are also described.
2-烷基-2-苯基-
3,3-二甲基吲哚啉通过对2-苯基-3,3-二甲基-
3H-吲哚进行1,2烷基
锂加成获得,随后用对
氯过
苯甲酸氧化转化为一系列新的
氨氧基化合物。尝试以类似方式合成适合的前体,如1,2-二氢-2-苯基-2-烷基
苯并噻唑、1,2-二氢-2-苯基-2-烷基苯并
噁唑和1,2-二氢-2-苯基-2-烷基-4H-3,1-苯并氧杂烯-4-酮等新
氨氧基化合物未能成功。实际上,
2-苯基苯并噻唑、2-苯基苯并
噁唑和2-苯基-4H-3,1-苯并氧杂烯-4-酮与烷基
锂试剂反应,生成来自环开裂的产物。此外,还描述了2,3-二甲基-3-苯基-
3H-吲哚和双(2-三苯基甲基
氨基苯基)二
硫化物的晶体结构。