B(C<sub>6</sub>F<sub>5</sub>)<sub>3</sub>-Catalyzed Hydrodesulfurization Using Hydrosilanes – Metal-Free Reduction of Sulfides
作者:Kodai Saito、Kazumi Kondo、Takahiko Akiyama
DOI:10.1021/acs.orglett.5b01651
日期:2015.7.2
B(C6F5)3-catalyzed hydrodesulfurization of carbon–sulfur bonds was achieved using triethylsilane as the reducing agent. The corresponding products were obtained in good yields under mild reaction conditions. This protocol could be applied to the reduction of sulfides, including benzyl and alkyl sulfides and dithianes, with high chemoselectivities.
使用三乙基硅烷作为还原剂,实现了B(C 6 F 5)3催化的碳硫键加氢脱硫。在温和的反应条件下以高收率获得了相应的产物。该方案可用于具有高化学选择性的硫化物的还原,包括苄基和烷基硫化物以及二噻烷。
Super electron donor-mediated reductive desulfurization reactions
The desulfurization of thioacetals and thioethers by a pyridine-derived electron donor is described. This methodology provides efficient access to the reduced products in high yields and does not require the use of transition-metals, elemental alkali-metals, or hydrogen atom donors.
The First Example of .ALPHA.-Thiomagnesiums Generated from Dithioacetal Monoxides with Grignard Reagent; Their Properties and Some Synthetic Applications.
作者:Tsuyoshi Satoh、Kiyoshi Akita
DOI:10.1248/cpb.51.181
日期:——
Dithioacetal monoxides were synthesized from aldehydes and cyclohexanone, and reaction of the dithioacetal monoxides with Grignard reagents was investigated. The dithioacetal monoxide synthesized from alkylaldehyde and 4-chlorobenzenethiol reacted with i-PrMgCl to afford the desired α-thiomagnesium in high yield. The generated α-thiomagnesium was found to be stable at room temperature and to be useful in organic synthesis. In contrast to this, the dithioacetal monoxides derived from benzaldehyde and cyclohexanone did not give satisfactory results.
A New Method for the Preparation of Alkyl Aryl Sulfides from Alcohols via Alkoxydiphenylphosphines by Oxidation–Reduction Condensation
作者:Teruaki Mukaiyama、Kazuhiro Ikegai
DOI:10.1246/cl.2004.1522
日期:2004.11
A new method for the preparation of alkyl aryl sulfides from alcohols via alkoxydiphenylphosphines by oxidation-reduction condensation was established. Various primary, secondary, and tertiary alcohols were successfully converted into the corresponding sulfides in moderate to high yields.