Reactions of Imidoyl Isoselenocyanates with Aromatic 2-Amino N-Heterocycles and 1-Methyl-1H-imidazole
作者:YuehuiDong Zhou、Anthony Linden、Heinz Heimgartner
DOI:10.1002/hlca.201100230
日期:2011.9
The reaction of N‐phenylimidoyl isoselenocyanates 1 with 2‐amino‐1,3‐thiazoles 10 in acetone proceeded smoothly at room temperature to give 4H‐1,3‐thiazolo[3,2‐a] [1,3,5]triazine‐4‐selones 13 in fair yields (Scheme 2). Under the same conditions, 1 and 2‐amino‐3‐methylpyridine (11) underwent an addition reaction, followed by a spontaneous oxidation, to yield the 3H‐4λ4‐[1,2,4]selenadiazolo[1′,5′:1,5]
的反应Ñ -phenylimidoyl isoselenocyanates 1与2-氨基-1,3-噻唑10在丙酮中平稳地进行在室温下,得到4- ħ -1,3-噻唑并[3,2-一个] [1,3,5]三嗪-4硒酮13的产量合理(方案2)。在相同条件下,1和2-氨基-3-甲基吡啶(11)进行的加成反应,随后通过自发氧化,以得到3 ħ -4λ 4 - [1,2,4] selenadiazolo [1',5 ′:1,5] [1,2,4] selenadiazolo [2,3- a ]吡啶14(方案3)。的结构X射线晶体学确定了14个(图1)。最后,1-甲基-1 H-咪唑(12)与1的反应生成3-甲基-1-(N-苯基苯甲酰亚胺基)-1 H-咪唑鎓硒氰酸15(方案4)。在所有这三种情况下,提出了一种最初形成的硒硒衍生物作为中间体。