作者:Walter Karl Schenk、Rolf Kyburz、Markus Neuenschwander
DOI:10.1002/hlca.19750580414
日期:1975.4.23
The synthesis and isolation of heptafulvene (1) and sesquifulvalene (2) is reported: Acetoxy-tropylium-fluoroborate (10) may be prepared by addition of tropone to acetyl-fluoroborate at low temperatures. The tropylium salt reacts easily with methyllithium and sodium cyclopentadienide to give the acetoxy-methyl-cycloheptatrienes 11 and the acetoxy-cyclopentadienyl-cycloheptatrienes 12 respectively.
报道了七富烯(1)和倍半富烯(2)的合成和分离:乙酰氧基-对乙酰氟苯硼酸酯(10)可以通过在低温下向乙酰基-氟硼酸酯中添加托酮来制备。tropylium盐容易与甲基锂和环戊二烯酸钠反应,分别得到乙酰氧基-甲基-环庚烯11和乙酰氧基-环戊二烯基-环庚烯12。气相热解11和12可提供显着良好的七富勒烯(1)和倍半富烯(2)收率),在低温下以结晶形式分离。提供了标题化合物的光谱学和化学证据。