Reactions of methyl-substituted cyclopentanones with lithium aluminum hydride and methyllithium. Structural determinations and proton nuclear magnetic resonance study of the reaction products
Tris(aryl)aminium hexachloroantimonates: Convenient one-electron oxidants for chemical electron transfer with bicyclic azoalkanes and bicyclo[2.1.0]pentanes
作者:Waldemar Adam、Coskun Sahin
DOI:10.1016/0040-4039(94)88418-8
日期:1994.11
The chemical behavior of the radical cations derived from 2,3-diazabicyclo[2.2.1]hept-2-enes 1 and bicyclo[2.1.0]pentanes 2 by oxidation with tris(aryl)aminium hexachloroantimonates has been examined.
A novel silane compound is disclosed, which is used as a suitable strating material (monomer) of polysilane eligible for the precursor of electroconductive- and photoconductive-materials such as phtoresists as well as polymerization initiators and silicone carbide-based ceramics and which is useful for chemical vapor deposition.
Regioselective Rearrangement of Bridgehead-Methyl-Substituted Radical Cations Derived from Bicyclo[2.1.0]pentanes and 2,3-Diazabicyclo[2.2.1]hept-2-enes through Photoinduced Electron Transfer and Radiolytic Oxidation: Product Distribution and Matrix ESR Studies
作者:Waldemar Adam、Coskun Sahin、Juergen Sendelbach、Herbert Walter、Guo-Fei Chen、Ffrancon Williams
DOI:10.1021/ja00085a043
日期:1994.3
essential localization of positive charge at the tertiary center as the reaction proceeds in the 1,3-diyl radical cation 1b[sup [sm bullet]+]. The symmetrical dimethyl derivative 1c rearranged much more reluctantly than 1b despite its lower oxidation potential, and this is attributed to the greater persistence of radical cation 1c[sup [sm bullet]+] through its reluctance to undergo a 1,2-H shift. The oxidation