作者:Kazuaki Isomura、Makoto Sakurai、Toshio Komura、Masumi Saruwatari、Hiroshi Taniguchi
DOI:10.1246/cl.1987.883
日期:1987.5.5
Thermal reaction of 2H-azirines, bearing a methoxy or methylthio group at the neighboring position to azirine ring, was studied. In thermolysis of ethyl 2-(2-methoxynaphth-1-yl)-2H-azirine-3-carboxylate, attack of the vinyl nitrene at the peri position to form a 1-azaphenalene ring was observed. In thermal reaction of its thio analogue, 1-azaphenalene was also formed, but a naphthothiazine formed by the attack of vinyl nitrene at the sulfur atom was the major product. Mechanisms and differences of the reactions depending on O and S are discussed.
研究了在
氮丙啶环附近带有甲氧基或甲
硫基的
2H-氮丙啶的热反应。在2-(2-甲氧基
萘-1-基)-2H-
吖丙啶-3-
羧酸乙酯的热解中,观察到
乙烯基氮烯在周围位置的攻击,形成1-氮杂
菲那烯环。在其
硫代类似物的热反应中,也形成1-氮杂
菲那烯,但主要产物是
乙烯基氮烯攻击
硫原子形成的
萘并
噻嗪。讨论了取决于 O 和 S 的反应机理和差异。