ArC(CH 3 )(SO 2 Ph)OMs 和 α-溴亚硫酸盐 ArC(CH 3 )(SO 2 Ph)Br 的溶剂解脱甲磺酸盐的练习曲。L'ordre de reactiverelative lors de la solvolyse des substrats du type p-CH 3 C 6 H 4 C(CH 3 )BrE, ou E est un groupe electronegatif, est COPh>PO(OEt) 2 >CN>SOPh>CF 3 >SO 2 Ph
A Novel Approach to the Practical Synthesis of Sulfides: An InBr<sub>3</sub>-Et<sub>3</sub>SiH Catalytic System Promoted the Direct Reductive Sulfidation of Acetals with Disulfides
Highly Efficient and Chemoselective Tertiary and Secondary Benzylation of Thiols Catalyzed by Indium(III) Triflate
作者:Krzysztof Kuciński、Grzegorz Hreczycho
DOI:10.1002/ejoc.201701007
日期:2017.10.10
We have developed a highly efficient method for the chemoselective nucleophilicsubstitution of tertiary and secondary benzylic alcohols with aliphatic and aromatic thiols in the presence of catalytic amounts of indium(III) triflate under mild conditions. A broad range of unsymmetrical sulfides were synthesized in excellent isolated yields (89–99 %) by using this approach.
Iron-Catalysed Markovnikov Hydrothiolation of Styrenes
作者:Jose R. Cabrero-Antonino、Antonio Leyva-Pérez、Avelino Corma
DOI:10.1002/adsc.201100731
日期:2012.3
The bis(triflimide)iron(III) salt catalyzes the hydrothiolation of styrenes in a Markovnikov fashion with good selectivities and high yields. After isolation, different benzylic thioethers are obtained. This iron(III) catalyst is unique in terms of regioselectivity and represents a sustainable and economic alternative to those processes based on stoichiometric reagents.
The synthesis of thioethers starting from alcohols and thiols in the presence of amorphous solid acid catalysts is reported. A silica alumina catalyst with a very low content in alumina gave excellent results in terms of both activity and selectivity also under solvent-free conditions. The reaction rate follows the electron density of the carbinol atom in the substrate alcohol and yields up to 99%
One-Pot Reductive Sulfenylation and Thiocyanation of Carbonyl Compounds in Ionic Liquid Media
作者:Lal Dhar S. Yadav、Garima、Ritu Kapoor
DOI:10.1080/00397910903531854
日期:2010.12.21
The first example of an efficient one-pot reductive sulfenylation and thiocyanation of carbonylcompounds in environmentally benign ionic liquid (IL) media is reported. The process involves reduction of carbonylcompounds with NaBH4 in the IL [bmim]BF4 followed by I2-catalyzed reaction of the resulting alcohols with aromatic / aliphatic thiols or ammonium thiocyanate in the same vessel to afford sulfides
报道了在环境良性离子液体 (IL) 介质中羰基化合物的有效单锅还原性磺基化和硫氰化的第一个例子。该过程包括在 IL [bmim]BF4 中用 NaBH4 还原羰基化合物,然后在同一容器中将所得醇与芳香族/脂肪族硫醇或硫氰酸铵进行 I2 催化反应,分别以极好的收率提供硫化物或硫氰酸盐( 78–93%)。值得注意的是,该协议排除了在单独的步骤中制备和分离中间醇的必要性,因为它们是原位形成的,并且所使用的 IL 可以轻松回收以供进一步使用,而不会降低效率。