Bittner Celine, Bockfeld Dirk, Tamm Matthias
Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38102 Braunschweig, Germany.
Beilstein J Org Chem. 2019 Oct 24;15:2534-2543. doi: 10.3762/bjoc.15.246. eCollection 2019.
Novel alkyne-bridged ferrocenophanes [fc{CO(CH) C≡}] (: = 2; : = 3) were synthesized from the corresponding terminal diacetylenic ferrocenes [fc{CO(CH) C≡CH}] (: = 2; : = 3) through ring-closing alkyne metathesis (RCAM) utilizing the highly effective molybdenum catalyst [MesC≡Mo{OC(CF)CH}] (; Mes = 2,4,6-trimethylphenyl). The metathesis reaction occurs in short time with high yields whilst giving full conversion of the terminal alkynes. Furthermore, the solvent-dependant reactivity of towards Ag(SbF) is investigated, leading to oxidation and formation of the ferrocenium hexafluoroantimonate in dichloromethane, whereas the silver(I) coordination polymer was isolated from THF solution.
新型炔桥联二茂铁[fc{CO(CH) C≡}](: = 2;: = 3)由相应的末端二乙炔基二茂铁[fc{CO(CH) C≡CH}](: = 2;: = 3)通过利用高效钼催化剂[MesC≡Mo{OC(CF)CH}](;Mes = 2,4,6 - 三甲基苯基)的关环炔复分解反应(RCAM)合成。复分解反应在短时间内高产率地发生,同时使末端炔烃完全转化。此外,研究了对Ag(SbF)的溶剂依赖性反应性,在二氯甲烷中导致氧化并形成六氟锑酸二茂铁鎓,而从四氢呋喃溶液中分离出银(I)配位聚合物 。