Efficient Synthesis of β‐Alkyl/Arylsulfanyl Carbonyl Compounds by In‐TMSCl‐Promoted Cleavage of Dialkyl/Diaryl Disulfides and Subsequent Michael Addition
作者:Brindaban C. Ranu、Tanmay Mandal
DOI:10.1080/00397910701229859
日期:2007.5
Abstract A convenient and efficient procedure for the synthesis of β‐alkyl/arylsulfanyl carbonyl compounds has been developed by a simple one‐pot reaction of dialkyl/diaryl sulfides with α,β‐unsaturated aldehydes, ketones, carboxylic esters, and nitriles in presence of indium and trimethylsilyl chloride under sonication.
Reduction cleavage of S–S bond by Zn/Cp<sub>2</sub>TiCl<sub>2</sub>: Application for the synthesis of β-arylthiocarbonyl compounds
作者:Xiao Bo Xu、Xian Hong Yin、Yu Yang Zhu、Xin Hua Xu、Tao Luo、Yin Hui Li、Xiong Lu、Ling Ling Shao、Jian Gao Pan、Rong Hua Yang
DOI:10.3184/030823409x12592534682310
日期:2009.12
Diaryldisulfides were reduced efficiently by a Zn/Cp2TiCl2 system at room temperature in dry THF to give the corresponding nucleophilic sulfur anion–titanocene complex, followed by reaction with α, β-unsaturated esters (ketones or nitriles) to afford the corresponding β-arylthioesters(ketone or nitrile) in good yields.
Scandium(III) triflate promoted highly selective addition of thiols to functionalizedolefins under mild conditions. The addition follows anti-Markovnikov regioselectivities, which are unusual for Lewis acids-catalyzed hydrothiolation. This reaction marks broad functional groups tolerance, which opens a beneficial synthetic route to functionalized and biologically active thio-compounds. This method
One-pot odorless thia-Michael reaction by copper ferrite nanoparticle-catalyzed reaction of elemental sulfur, aryl halides and electron-deficient alkenes
作者:Mohammad Gholinejad、Habib Firouzabadi
DOI:10.1039/c5nj00867k
日期:——
In this article we report a non-odorous protocol for the high yield formation of aryl–alkyl sulfides by the reaction of aryl iodides, bromides and boronicacids with elementalsulfur and electron-deficient alkenes, catalyzed by copper ferrite nanoparticles. The catalyst was easily separated using an external magnetic bar and recycled for subsequent runs, its catalytic activity being preserved.
CuI‐catalyzed tandem synthesis of thioethers using aryl halides, electron‐deficient alkenes, and sodium
<i>iso</i>
‐propyl xanthogenate
作者:Mohammad Abbasi、Najmeh Nowrouzi、Rahimeh Khezri
DOI:10.1002/aoc.5553
日期:2020.4
A ligand‐free, CuI‐catalyzed protocol was developed for the one‐step preparation of Michael adducts of aromatic thiols in high yields by reacting a mixture of an arylhalide and an electron‐deficientalkene with sodiumiso‐propylxanthogenate.