Gas-Phase Generation of Highly Reactive Hexatriyne-Bridged [6n]Paracyclophynes
摘要:
[6(n)]Paracyclophenediynes 2a-d (n = 3-6) having [4.3.2]-propellatriene units were prepared as precursors of the corresponding [6n]paracyclophynes. Laser irradiation of 2a-d produced the negative ions of [6n]paracyclophynes 1a-d (n = 3-6) by extrusion of the indan fragments, which were detected by time-of-flight mass spectrometry.