Gas-phase synthesis and characterization of heteroleptic divalent germanium compounds by FVT/UV-PES

Flash Vacuum Pyrolysis: Techniques and Reactions

“…The PE spectrum of silabenzene was obtained using the propene elimination in a specially designed short-path pyrolysis apparatus at ca. 700 o C. [145] Several compounds with Si=C, Si=N, Si=P, and Si=S bonds [146] as well as a number of silylenes and germylenes [147] have been generated by FVP and characterized by PES and in many cases also by IR and/or mass spectrometry.…”

Flash‐Vakuumpyrolyse – Techniken und Reaktionen

“…[136] Das Methylsulfinylradikal CH 3 -O-S-OC wurde durch FVP von CH 3 OS(O)CF 3 bei 730 8 8Cu nter Eliminierung eines CF 3 -Radikals generiert und durch sein Matrix-IR-Spektrum charakterisiert. [145] Mehrere Verbindungen mit Si = C-, Si = N-, Si = P-und Si = S-Bindungen [146] wie auch eine Anzahl von Silylenen und Germylenen [147] sind durch FVP generiert und durch PES,und in vielen Fällen auch durch IR-Spektroskopie und/oder Massenspektrometrie,charakterisiert worden. [137] Thioformaldehyd-S-oxid wurde mittels FVP von 1,3-Dithian-S,S-dioxid generiert, durch IR-und UV-Spektroskopie in einer Ar-Matrix charakterisiert und durch Matrixphotolyse bei 10 Kz ud em ungewçhnlichen Mo-lekülH -CS-OH mit einer formalen CS-Dreifachbindung isomerisiert [Gl.…”

“…700 8 8Caufgenommen. [145] Mehrere Verbindungen mit Si = C-, Si = N-, Si = P-und Si = S-Bindungen [146] wie auch eine Anzahl von Silylenen und Germylenen [147] sind durch FVP generiert und durch PES,und in vielen Fällen auch durch IR-Spektroskopie und/oder Massenspektrometrie,charakterisiert worden.…”

External Electric Field Induces a Mechanistic Crossover in the Reactivity of 1,3-Dienes with Sulfur Dioxide: Sulfolene Versus Sultine

“…1,7 Additionally, there has been an interest to study the properties of the heavier analogues of carbene such as phoshinidene and germylene, and their chelotropic reactions have also been explored. 8,9 Recently, the chelotropic release of CO under the mechanical effects of sonication has been shown for the norborn-2-en-7-one (NEO) scaffold. 10 Heravi et al have reviewed the progress of HDA reaction in the total synthesis of natural products.…”

“…However, as shown in Scheme , the diene might also form a σ (C–O) and σ (C–S) bond with SO 2 ( π 2 s + π 4 s ) to produce a six-membered S-ring (sultine) through a hetero-Diels–Alder reaction (HDA) . The chelotropic elimination of SO 2 from sulfolene provides access to in situ generated dienes in total synthesis such as estra-1,3,5,(10)-trien-17-one and taxane ring systems. , A similar mechanism for chelotropic addition/elimination is known for singlet carbene, CO, N 2 , and N 2 O. , Additionally, there has been an interest to study the properties of the heavier analogues of carbene such as phoshinidene and germylene, and their chelotropic reactions have also been explored. , Recently, the chelotropic release of CO under the mechanical effects of sonication has been shown for the norborn-2-en-7-one (NEO) scaffold . Heravi et al have reviewed the progress of HDA reaction in the total synthesis of natural products …”