An efficient preparation, the structure and the properties of 1-isopropyl-4-(3-guaiazulenylmethylium)benzene hexafluorophosphate and tetrafluoroborate
作者:Shin-ichi Takekuma、Mariko Tanizawa、Masato Sasaki、Takuya Matsumoto、Hideko Takekuma
DOI:10.1016/s0040-4039(02)00207-1
日期:2002.3
(and tetrafluoroboronic acid) at 25°C for 2 h under aerobic conditions quantitatively give the new title monocarbocation compounds, 1-isopropyl-4-(3-guaiazulenylmethylium)benzene hexafluorophosphate (4) and the tetrafluoroborate (5), which upon reaction with sodium methoxide dissolved in methanol in acetonitrile at 0°C for 20 min, respectively, afford as high as 92% isolated yield of 1-isopropyl-4-(3-
在有氧条件下,六氟磷酸(和四氟硼酸)存在下,愈创木酚(1)与4-异丙基苯甲醛在乙酸中的乙酸在有氧条件下于25°C反应2小时,定量地得到了新的标题为单碳化的化合物,即1-异丙基-4-(3 -愈创木烯基甲基)苯六氟磷酸酯(4)和四氟硼酸酯(5),分别与溶于甲醇的甲醇钠在乙腈中于0°C反应20分钟后,分离出的1-异丙基-4收率高达92% -(3-愈创氮杂烯基甲氧基甲基)苯(8)。作为氮杂氮烯基稳定的碳阳离子的第一个例子5的晶体结构,以及其特性和化学性质。报告了4和5。