Photocyclization Reactions of N-Substituted 3-(2-Hydroxynaphthalen-1-yl)propenamide Derivatives Accompanied by Liberation of Aliphatic and Aromatic Primary Amines
作者:Tadamitsu Sakurai、Koh Watanabe、Shun Takahashi、Takuya Yoshizawa、Tetsutaro Igarashi
DOI:10.3987/com-14-12990
日期:——
(E)-3-(2-Hydroxynaphthalen-1-yl)propenoyl- and (E)-3-(2-hydroxynaphthalen-1-yl)-2-methylpropenoyl-protected aliphatic and aromatic primary amines were synthesized and their photolytic behavior in methanol was explored. The results showed that irradiation of the hydroxynaphthyl-propenamide derivatives in a protic polar solvent at wavelengths greater than 280 nm or 340 nm causes rather efficient deprotection reactions to afford the desired amines quantitatively along with fluorescent benzocoumarins.
(E)-3-(2-羟基-苯并-1-yl)丙烯酰胺和(E)-3-(2-羟基-苯并-1-yl)-2-甲基丙烯酰胺类的芳香族和有机酸性一元胺类通过化学修饰而被合成了,并探究了它们在甲醇溶液中的光解行为。实验结果表明,介于280 nm和340 nm以上的单色光暴露下,质子溶剂中的羟基苯并丙烯酰胺衍生物发生了较有效率的去修饰反应,定量地获得了期望的芳香族一元胺和荧光型苯并呋喃。