dialdehyde derivatives 7. The reaction was assumed to be geometrically stereoselective, affording E, E′-configuration as the only isolable isomer. N, N′-[Alkanediylbis(thia-2,1-phenylene)]bis[2-cyanoacetamides] 4 were obtained by the reaction of cyanoacetic acid with the corresponding diamine hydrochlorides 3. © 2007 Wiley Periodicals, Inc. Heteroatom Chem 18:249–254, 2007; Published online in Wiley InterScience
通过双-2-
氰基乙酰胺 4 与二醛衍
生物 7 的碱催化缩合反应,实现了 26 至 28 元
硫大环双内酰胺 8 的便捷合成。假设该反应具有几何立体选择性,提供 E、E'-构型为唯一可分离的异构体。N, N'-[烷二基双(
硫杂-2,1-亚苯基)]双[2-
氰基乙酰胺] 4 是通过
氰乙酸与相应的二胺盐酸盐 3 反应获得的。 © 2007 Wiley Periodicals, Inc. 杂原子
化学 18: 249-254, 2007; 在线发表于 Wiley InterScience (www.interscience.wiley.com)。DOI 10.1002/hc.20292