67502-77-6

Upstream product

• 627-19-0 1-Pentyne 
• 5707-04-0 Phenylselenyl chloride 
• 931430-49-8 4,4,5,5-tetramethyl-2-(pent-1-en-1-yl)-1,3,2-dioxaborolane 
• 645-96-5 Benzeneselenol 
• 79719-90-7 propylethynyl phenyl selenide 
• 68001-64-9 (hex-1-ynyl)(phenyl)selane 
• 1666-13-3 diphenyl diselenide 
• 31849-75-9 (Z)-1-pentenyl bromide 

Downstream Products

• 128737-20-2 ((1R,3R)-2,2-Dichloro-3-propyl-cyclopropylselanyl)-benzene 
• 128737-25-7 1,1-dibromo-2-(phenylseleno)-3-propyl cyclopropane 

Relevant academic research and scientific papers

Synthesis and carbon-13 NMR analysis of some organoselenium compounds

Carbon-13 chemical shift assignments are reported for a series of 10 organoselenium compounds of the type PhSeL.In the course of this study, hydroalumination and bromination of alkynylselenium compounds was performed for the first time, and compared with

Superparamagnetic copper ferrite nanoparticles catalyzed aerobic, ligand-Free, regioselective hydroboration of alkynes: Influence of synergistic effect

We discovered a general and comprehensive approach for the regioselective hydroboration of terminal and internal alkynes to synthesize vinylboronates using inexpensive and magnetically separable copper ferrite nanoparticles at low catalyst loading using Bis(pinacolato)diboron in the absence of ligand and additives, under mild and greener conditions. A diverse range of functional groups was tolerated in the reaction, including allene and enones, and the corresponding boronates were obtained in high yields under air. Moreover, the assynthesized alkenylboronates were used as precursors to prepare wide variety of vinylorgano chalcogenides regioselectively, in high yields. The present protocol enable the conversion of Csp-H bonds to make Csp2-B bonds via activation of B-B bond, followed by formation of Csp2-Se (Te or S) bonds via activation of Se (Te or S)- Se (Te or S) bonds in a regioselective manner. Deuterium isotope labeling studies showed that the proton source of vinyl boronate stem from the solvent employed.

A general and green procedure for the synthesis of organochalcogenides by CuFe2O4 nanoparticle catalysed coupling of organoboronic acids and dichalcogenides in PEG-400

A general and efficient procedure has been developed for the synthesis of organochalcogenides (selenides and tellurides) by a simple reaction of organoboronic acids and dichalcogenides catalysed by CuFe2O 4 nanoparticles in PEG-400 without any ligand. This protocol offers the scope for access to a wide spectrum of chalcogenides including diaryl, aryl-heteroaryl, aryl-styrenyl, aryl-alkenyl, aryl-allyl, aryl-alkyl and aryl-alkynyl versions. The catalyst is magnetically separable and recyclable eight times without any loss of appreciable catalytic activity. The products are obtained in high purities after evaporation of solvent followed by filtration column chromatography. The Royal Society of Chemistry.

Mild, efficient and highly stereoselective synthesis of (Z)-vinyl chalcogenides from vinyl bromides catalyzed by copper(I) in ionic liquids based on amino acids

A method for the synthesis of (Z)-vinyl chalcogenides by the coupling of vinyl bromides with thiols or diphenyl diselenide using copper(l) salts as catalysts in ionic liquids based on amino acids is reported. The desired vinyl chalcogenides were obtained

Stereoselective synthesis of vinyl selenides by coupling of vinyl bromides with diorgano diselenides catalyzed by copper(I) in [Bmim]BF4

The CuI/L-proline-catalyzed zinc-promoted coupling reaction of vinyl bromides with diaryl diselenides or dialkyl diselenides readily occurred at 110 °C in [Bmim]BF4 to give the corresponding vinyl selenides in good to excellent yields. The recyclable catalyst system offered a convenient, stereoselective and versatile method for the synthesis of vinyl selenides. Georg Thieme Verlag Stuttgart.

Synthesis of ketene butyltelluro(phenylseleno)acetals by the Al/Te exchange reaction

Hydroalumination of acetylenic selenides occurs regiospecifically and the vinyl alanes obtained as intermediates were transformed into ketene butyltelluro (phenylseleno) acetals by the Al/Te exchange reaction using C4H9TeBr as electr

STEREOSELECTIVE SYNTHESIS OF VINYLIC SELENIDES

The addition of selenophenol to mono- and di-substituted unactivated acetylenes have been investigated.At room temperature the vinylic selenides obtained were predominantly of the Z configuration; at 120 deg C Z/E mixtures were produced.Vinylic selenides