Based on this diphenyl telluride synthesis, a one‐pot synthesis of unsymmetrical diaryl tellurides was developed by the SH2 reaction of in situ generated diphenyl telluride with arylhydrazines in the air. The selectivity of mono‐/di‐substitution and the reactivity of arylhydrazines depend on ...
Condensation of hydrazines 497 with equimolar amount of aromatic aldehydes 498 afforded the corresponding hydrazones 499 which was subjected to a dehydrogenative cyclization with bromine in acetic acid in the presence of sodium acetate or with an ethanolic iron(III) chloride solution. One pot ...
The synthesis started from dehydroepiandrosterone, which was converted to the corresponding 17-hydrazone by treatment with hydrazine hydrate and hydrazine sulfate in ethanol [86]. The steroidal hydrazone was reacted with iodine in the presence of 1,1,3,3-tetramethylguanidine yielding the vinyl 17-...
1.In this paper the effects of hydroxylamine sulfate and hydrated hydrazine on the B-Z reaction are studied.他们的实验表明,当加入维生素C时,B-Z反应的诱导期增长,振荡周期增大,振荡寿命缩短,与向反应体系加入等量的Br-所产生的影响是一致的,并由此推断,维生素C对B-Z反应的影响可能是由维生素C与BrO反应生...
Formaldehyde measurements were also calibrated by adsorption on 2,4-DiNitro Phenyl Hydrazine cartridges and analysis through High-Pressure Liquid Chromatography (HPLC-UV) for some of the experiments36. The agreement between PTR-TOFMS and HPLC was within 20%. Methanol and formaldehyde wall losses ...
Propylene oxidation reaction under air plasma; 空气等离子体条件下丙烯氧化反应 2. Research on CaS oxidation reaction with thermogravimetric analysis; CaS氧化反应特性的热重研究 3. The study and application of oxidation reaction in the production of hydrazine hydrate; 水合肼生产中氧化反应的研究和应用...
Palladium-Catalyzed Reaction of Bicyclic Hydrazines with Allyl- and Arylstannanes in Ionic Liquid [bmim]PF6: A Facile Method for the Synthesis of Substitut... A method for the synthesis of substituted hydrazinocyclopentenes by the palladium-catalyzed reaction of azabicyclic and tricyclic olefins with...
(II) chloride, chloride salts, Sulfite compounds, Hydrazine, zinc-mercury amalgam Diisobutylaluminum hydride, Lindlar catalyst, molybdenum oxide, Oxalic acid, Formic acid, Ascorbic acid, Phosphites, hypophosphites, phosphorous acid, phosphate, phosphate salts, zinc phosphate, copper phosphate, ammonium ...
are highly desired. Graphene or N–graphene have been employed to couple withmetal NPsto enhance OER activity[201]. For example, N–graphene film-NiNPcomposite prepared by reducing Ni(NO3)2·6H2O and doping N into graphene (via hydrazine hydrate) in a solvothermal process shows comparable OER...
8.14.2.3Reduction of Azo and Azoxy Compounds to Amines Reductive cleavage of symmetrical or unsymmetrical azo- and azoxyarenes to amines can be performed either by transfer hydrogenation with ammonium formate and palladium37or zinc,38LiDTBB/NiCl2,39or hydrazine hydrate.40A recent method describes a ...