2-Methylisoselenochromanium salts: Spectroscopic properties and reactions.
作者:Mikio HORI、Tadashi KATAOKA、Hiroshi SHIMIZU、Kazuhiro TSUTSUMI
DOI:10.1248/cpb.38.779
日期:——
Some 2-methylisoselenochromanium salts were prepared. Proton nuclear magnetic resonance spectra in CDCl3 and electron impact mass spectra showed that the selenonium tosylate (4) and mesylate (5) are selenuranes and that the tetrafluoroborate (2) and triflate (3) are selenonium salts. Their structures at the selenium atom are influenced by their counter anions. Selenonium salts (2-5) reacted with some nucleophiles to give a styrene derivative (6) and methyl phenethyl selenides (7, 9).
制备了一些2-甲基异硒铬镨盐。在CDCl3中的质子核磁共振谱和电子轰击质谱显示,硒镩对甲苯磺酸盐(4)和甲磺酸盐(5)是硒烷,而四氟硼酸盐(2)和对甲苯磺酸盐(3)是硒镨盐。它们在硒原子上的结构受到其反离子的影响。硒镨盐(2-5)与一些亲核试剂反应,生成了苯乙烯衍生物(6)和甲基苯乙基硒化物(7, 9)。