107793-06-6

Upstream product

• 33577-99-0 2-ethynyl-benzoic acid methyl ester 
• 215671-84-4 methyl 2-(2,2-dibromovinyl)benzoate 
• 610-97-9 o-iodo-methyl-benzoic acid 
• 1066-54-2 trimethylsilylacetylene 
• 88-67-5 2-Iodobenzoic acid 
• 107793-07-7 methyl 2-(2-trimethylsilyl-1-ethynyl)benzoate 

Downstream Products

• 1225556-02-4 2,2'-[1-(4-octylphenyl)-1H-pyrrole-2,5-diyl]bisbenzoic acid dimethyl ester 

Relevant academic research and scientific papers

Copper-mediated homocoupling of vinyl dibromides to symmetrical diynes

1,1-Dibromoalk-1-enes were dimerized readily in the presence of copper iodide, a diamine ligand, and cesium carbonate in DMF to give symmetrical 1,3-diynes. The reaction was found to be selective and rather general, furnishing the corresponding diynes in good yields, even with complex and sensitive dibromides, and provides useful insights into the reactivity of 1,1-dibromoalk-1-enes with copper(I). Georg Thieme Verlag Stuttgart.

SMALL MOLECULE INHIBITORS OF A PROTEIN COMPLEX

Compositions and methods for treating thrombosis, inflammation, and atherosclerosis by administration of a compound that binds to KRIT1 to inhibit binding with HEG1.

Synthesis of 5H-Selenopheno[3,2-c]isochromen-5-ones Promoted by Dialkyl Diselenides and Oxone

We describe here for the first time the synthesis of isochromenones fused to selenophenes. 5H-Selenopheno[3,2-c]isochromen-5-ones were obtained through a double intramolecular cyclization of methyl 2-(organyl-1,3-diynyl)benzoate promoted by electrophilic species of selenium generated in situ by the reaction of dialkyl diselenides with Oxone, using ethanol as solvent. The reactions were conducted satisfactorily under mild conditions, using a range of 1,3-diynes and dialkyl diselenides as substrates. A total of sixteen unprecedent 5H-selenopheno[3,2-c]isochromen-5-ones were selectively obtained in moderate to good yields (40–86%) under reflux in an open flask and in short reaction times (1.0–2.5 h). (Figure presented.).

Copper(i) chloride catalysed room temperature Csp-Csp homocoupling of terminal alkynes mediated by visible light

We developed a technique mediated by visible light for the aerobic homocoupling of terminal alkynes to synthesize 1,3-conjugated diynes using a copper(i) chloride catalyst at room temperature. Compared with previously reported thermal processes, this photochemical method is simple, uses only mild reaction conditions, produces high yields and works well for substrates with electron-withdrawing groups without the need for bases/ligands, oxidants or palladium catalysts.

Consecutive one-pot sonogashira-glaser coupling sequence- Direct preparation of symmetrical diynes by sequential Pd/Cu catalysis

Sonogashira coupling and the catalytic Glaser coupling are both catalyzed by the Pd-Cu complex couple and can be concatenated to a consecutive sequentially Pd/Cu-catalyzed process in a one-pot fashion, and air oxygen serves as the only oxidant in the second step. In a pseudo-four-component synthesis, a broad variety of symmetrically substituted 1,4-bis(hetero)aryl-1,3-butadiynes are obtained in good to excellent yields. Interestingly, the presence of iodide ions has been found to be advantageous over other halides to trigger the Pd/Cu-catalyzed Glaser step, and Pd and Cu species, as well as triethylamine as a base, are prerequisite for both couplings, which proceed with higher efficiency if performed in a one-pot sequence. Two catalytic alkyne coupling reactions were combined in a consecutive sequentially Pd/Cu-catalyzed process to furnish a novel pseudo-four-component synthesis of a variety of symmetrically substituted 1,4-bis(hetero)aryl-1,3-butadiynes in goodyields. Pd and Cu species and triethylamine (base) are essential for the couplings, which proceed with higher efficiency if performed in a one-pot sequence. Copyright

Pyrrole-cored push-pull single chromophore

We report a straightforward synthesis toward pyrrole-cored push-pull single chromophore in which the electron-donating (D) units are pyrrole groups and electron-withdrawing (A) moieties are diketone groups. Optical and electrochemical properties of the no