167320-32-3Relevant academic research and scientific papers
Synthesis of dialkenyl dichalcogenides via alkenechalcogenolate ions generated by treating ketone p-Toluenesulfonylhydrazones with a base and elemental chalcogen
Shimada, Kazuaki,Asahida, Mitsuharu,Takahashi, Ken,Sato, Yoshitaka,Aoyagi, Shigenobu,Takikawa, Yuji,Kabuto, Chizuko
, p. 513 - 514 (1998)
Alkeneselenolate and alkenetellurolate ions were generated by treating ketone p-toluenesulfonylhydrazones possessing an α-methylene or an α-methine group with t-BuOK and elemental selenium or tellurium, respectively, at 110-150°C, and were converted into dialkenyl dichalcogenides by aerobic oxidation.
'High-surface sodium' as a reducing agent for TiCl 3
Furstner,Seidel
, p. 63 - 68 (2007/10/02)
Sodium deposited on inorganic supports such as Al2O3, TiO2 and NaCl ('high-surface sodium') is a cheap, readily prepared, nonpyrophoric reducing agent for TiCl3. The low-valent titanium thus obtained, after only 1 h reduction time, is well suited for McMurry coupling reactions, particularly of aromatic carbonyl compounds. It exhibits a previously unrivalled template effect for the cyclization of dicarbonyl compounds to (macrocyclic) cycloalkenes and is suitable for the reduction of N-acyl-2-aminobenzophenone derivatives to 2,3-disubstituted indoles. Even a 36-membered ring could be formed without recourse to high dilution techniques.
