35672-48-1

Upstream product

• 59931-57-6 4-Ethyl-β,β'-dibromostyrene 
• 25309-64-2 4-ethyl-1-iodobenzene 
• 75-20-7 calcium carbide 
• 4748-78-1 4-ethylbenzylaldehyde 
• 40307-11-7 1-ethyl-4-ethynylbenzene 

Downstream Products

• 1376960-11-0 2,5-bis(4-ethylphenyl)furan 
• 1411910-01-4 8-ethyl-6-(4-ethylphenyl)-1,3-dimethylbenzo[f]quinazoline 
• 1245447-30-6 2,5-bis(4-ethylphenyl)-1-(4-fluorophenyl)pyrrole 
• 1245447-25-9 2,5-bis(4-ethylphenyl)-1-phenylpyrrole 

Relevant academic research and scientific papers

Creating Dynamic Nanospaces in Solution by Cationic Cages as Multirole Catalytic Platform for Unconventional C(sp)?H Activation Beyond Enzyme Mimics

Herein we demonstrate that, based on the creation of dynamic nanospaces in solution by highly charged positive coordination cage of [Pd6(RuL3)8]28+, multirole and multi-way cage-confined catalysis is accomplisha

Synthesis of 1,3-Diynes Using Calcium Carbide as an Alkyne Source

A simple method for the synthesis of 1,3-diynes from iodoarenes using calcium carbide as an alkyne source and air as an oxidant is described. A series of 1,4-diarylbuta-1,3-diynes were efficiently synthesized by this strategy. The salient features of this protocol are the use of inexpensive and easy-to-handle alkyne source, broad substrate scope, open-air condition, and simple operation procedure.

Cu-Catalyzed solvent-free, pot-economic synthesis of 1,3-dynes from 1,1-dibromoalkenes in the presence of DBU?H2O

An efficient synthesis of 1,3-diynes directly from 1,1-dibromoalkenes has been achieved by utilizing hydrated 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU.H2O) as a sole reagent and a catalyst CuI. In general, 1,3-diynes were synthesized from corresponding terminal alkynes, which in turn were obtained from 1,1-dibromoalkenes. The DBU.H2O allowed the synthesis of 1,3-diynes not only in a pot-efficient manner but also under solvent-free conditions at ambient temperature. A plausible mechanism is proposed via 1-bromoalkynes intermediate instead of terminal alkynes.

Leaf-like CuO nanosheets on rGO as an efficient heterogeneous catalyst for Csp-Csp homocoupling of terminal alkynes

In this work, the economic and well-defined leaf-like CuO nanosheets on rGO (CuO nanosheets/rGO) was synthesized by a convenient hydrothermal method. The morphology and chemical composition of CuO nanosheets/rGO were confirmed by XRD, SEM-EDS, TEM, HR-TEM, and XPS techniques. The CuO nanosheets/rGO was successfully applied as a high-performance heterogeneous catalyst in the homocoupling of 12 terminal alkynes, and the isolated yield of each product was more than 80%, except for propargyl alcohol. This catalyst could be reused five times with little activity loss. Thus, it is beneficial for green and sustainable development of organic synthetic chemistry.

High-efficiency catalyst for copper nanoparticles attached to porous nitrogen-doped carbon materials: Applied to the coupling reaction of alkyne groups under mild conditions

Supported catalysts have attracted extensive attention due to their excellent catalytic performance and reliability in heterogeneous catalysis. In this work, we report a general synthesis strategy that achieves the self-coupling reaction of acetylene deri

Supporting a Cu@In2O3core-shell structure on N-doped graphitic carbon cuboctahedral cages for efficient photocatalytic homo-coupling of terminal alkynes

Improving the separation efficiency of photogenerated carriers and exposing more active sites are two important factors to improve the photocatalytic efficiency of photocatalysts. Designing appropriate materials with special structure and composition to a

Selective C-C coupling of terminal alkynes under an air atmosphere without base over Cu-NX-C catalysts

The fabrication of a silk fibroin-drived porous, in situ nitrogenated carbon skeleton with highly dispersed Cu-NX-C active sites via a sol-gel and pyrolysis treatment was demonstrated. Cu-NX-C was used to catalyze the oxidative homo-coupling of terminal a

Copper-Mediated Deacylative Coupling of Ynones via C-C Bond Activation under Mild Conditions

The intermolecular deacylative coupling of unstrained ynones via C-C bond activation was accomplished by a CuCl-bpy system under mild reaction conditions. This protocol features facile cleavage of the C-C bond at room temperature, broad substrate scope, and efficient construction of important symmetric and unsymmetrical 1,3-diyne adducts through homo or cross coupling of ynones, respectively. The preliminary mechanistic investigations indicated that an acyl copper(III) complex is likely involved in this process.

Stabilized Cu/Cu2O nanoparticles on rGO as an efficient heterogeneous catalyst for Glaser homo-coupling

Stabilized Cu/Cu2O nanoparticles on reduced graphene oxide (Cu/Cu2O-NPs@rGO) was synthesized by one-step co-reduction and acted as a green and efficient non-noble metal heterogeneous catalyst for Glaser homo-coupling. Through the synergic catalytic effect of Cu/Cu2O nanoparticles and graphene, the heterogeneous hybrid nanoparticles catalyst showed excellent catalytic performance for Glaser homo-coupling with the yield up to 99% of 1,4-diphenyl buta-1,3-diyne. And excellent functional group tolerance was obtained with oxygen as a green oxidant. Furthermore, the catalyst can be easily separated and recycled seven times without significant decline in its catalytic performance.

Copper (II) catalyzed homocoupling and heterocoupling of terminal alkynes

Cu(OTf)2 catalyzed homo– and heterocoupling of aromatic and aliphatic terminal alkynes has been developed. Symmetric and unsymmetric 1,3-diynes have been synthesized in good yields under an aerobic condition in the presence of an organic base D