32291-84-2

Upstream product

• 1068-69-5 Tris(trimethylsilyl)methane 
• 100-52-7 benzaldehyde 
• 873-73-4 4-n-chlorophenylacetylene 
• 108-98-5 thiophenol 
• 132747-19-4 (+/-)_S-(Z)-2-(4-chlorophenyl)-1-(phenylsulfinyl)ethene 
• 104-88-1 4-chlorobenzaldehyde 
• 13884-92-9 phenylthiomethyl triphenylphosphonium chloride 
• 66482-30-2 (Z)-1-bromo-2-(4-chlorophenyl)ethylene 
• 706-07-0 1-chloro-4-(2-nitrovinyl)benzene 
• 882-33-7 diphenyldisulfane 
• 3240-10-6 (4-chlorophenyl)propiolic acid 
• 38066-16-9 diethyl [(phenylthio)methyl]phosphonate 
• 55843-71-5 phenyltellurenyl bromide 
• 66482-29-9 1-[(E)-2-bromoethenyl]-4-chlorobenzene 

Downstream Products

• 34101-22-9 (E)-4-chlorostyryl phenyl sulfone 

Relevant academic research and scientific papers

Electrophilic Vinylation of Thiols under Mild and Transition Metal-Free Conditions

The iodine(III) reagents vinylbenziodoxolones (VBX) were employed to vinylate a series of aliphatic and aromatic thiols, providing E-alkenyl sulfides with complete chemo- and regioselectivity, as well as excellent stereoselectivity. The methodology displays high functional group tolerance and proceeds under mild and transition metal-free conditions without the need for excess substrate or reagents. Mercaptothiazoles could be vinylated under modified conditions, resulting in opposite stereoselectivity compared to previous reactions with vinyliodonium salts. Novel VBX reagents with substituted benziodoxolone cores were prepared, and improved reactivity was discovered with a dimethyl-substituted core.

Safe and Metal-Free Synthesis of 1-Alkenyl Aryl Sulfides and Their Sulfones from Thiiranes and Diaryliodonium Salts

A series of 1-alkenyl aryl sulfides was synthesized from thiiranes and diaryliodonium salts in tetrahydrofuran in the presence of potassium tert -butoxide. The proposed reaction mechanism involves generation of benzynes from the diaryliodonium salts in the presence of the base. Then, nucleophilic attack of the benzynes by thiiranes, followed by hydrogen abstraction and ring opening of the generated thiiranium intermediates, provides the sulfides. These sulfides were further oxidized with performic acid to the corresponding sulfones. The current method provides a metal-free and safe method for the preparation of 1-alkenyl aryl sulfides and their sulfones.

Alkenyl preparation method of sulfide

The invention discloses a method for preparing alkenyl sulfide. The method comprises the following steps: adding a styrene derivative of the formula I as shown in the specification into a disulfide compound of the formula II as shown in the specification,

Copper-mediated stereospecific C-H oxidative sulfenylation of terminal alkenes with disulfides

A copper and iodine-mediated C-H oxidative sulfenylation of olefins with diaryl disulfides has been developed for the stereospecific synthesis of vinyl thioether. With the combination of Cu(OTf)2 and I2, a variety of terminal alkenes

Glycerol/CuI/Zn as a recyclable catalytic system for synthesis of vinyl sulfides and tellurides

A convenient approach to the Cu-catalyzed coupling of diphenyl disulfide and diphenyl ditelluride with vinyl bromides using a recyclable catalytic system and glycerol as a green solvent is described. This protocol was efficiently used in the preparation of vinyl sulfides and vinyl tellurides with a variety of substituents in good yields and stereoselectively. The solvent/catalyst system was directly reused for four cycles without loss of activity.

Carbon dioxide mediated stereoselective copper-catalyzed reductive coupling of alkynes and thiols

A simple protocol for the stereoselective copper-catalyzed hydrothiolation of alkynes under a CO2 atmosphere has been developed. The stereoselectivity is determined by the presence/absence of a CO2 atmosphere. The reaction system is robust and utilizes inexpensive, readily available substrates. A cyclic alkene/carboxylate copper complex intermediate is proposed as the key step in determining the stereoselectivity, and an equivalent amount of water is found to play an active role as a proton donor.

Heterogeneous hydrothiolation of alkynes with thiols catalyzed by diphosphino-functionalized MCM-41 anchored rhodium complex

A novel diphosphino-functionalized MCM-41 anchored rhodium complex [MCM-41-2P-RhCl(PPh3)] was conveniently synthesized by the reaction of diphosphino-functionalized MCM-41 (MCM-41-2P) with RhCl(PPh3) 3. It was found that this rhodium complex is an efficient catalyst for the hydrothiolation of terminal alkynes with thiols and can be recovered and recycled by a simple filtration of the reaction solution and used for at least ten consecutive trials without any decreases in activity.

Synthesis of vinyl sulfides by copper-catalyzed decarboxylative C-S cross-coupling

A novel method for the synthesis of vinyl sulfides by the decarboxylative cross-coupling of arylpropiolic acids with thiols using copper(I) salts as catalysts has been developed. In the presence of CuI and Cs2CO 3, a variety of thiols reacted with arylpropiolic acids to afford the corresponding vinyl sulfides in good to excellent yields with high stereoselectivity for Z-isomers.

Water-promoted regioselective hydrothiolation of alkynes

Water promotes hydrothiolation of unactivated alkynes efficiently without any catalyst or additive. The reaction at room temperature furnishes vinyl sulfides with high regioselectivity via anti-Markovnikov addition. The terminal al- kynes provide dithiola

Reductive addition of the benzenethiyl radical to alkynes by amine-mediated single electron transfer reaction to diphenyl disulfide

Hydrothiolation of alkynes proceeds with diphenyl disulfide and tripropylamine. Amine-mediated single electron transfer to diphenyl disulfide can be proposed for the reaction mechanism. Applications of the method to radical cyclizations of eneyne compound