π-conjugated system, cyclopent[a]azulen-3(H)-one, was prepared by flash vacuum pyrolysis on the final step. All proton signals of this molecule were observed at higher magnetic resonance field than expected in terms of induced paramagnetic ring current in the periphery of this molecule.
在最后一步通过快速真空热解制备了一种新的
三环 π 共轭体系,cyclopent[a]azulen-3(H)-one。该分子的所有质子信号均在比该分子外围感应顺磁环电流更高的磁共振场中观察到。