2510-75-0

Basic information

• Product Name: Benzene, 1,1'-(1,2-ethenediyl)bis[4-methoxy-, (Z)-
• CAS NO: 2510-75-0
• Molecular Formula: C16H16O2
• Molecular Weight: 240.302
• Mol File: 2510-75-0.mol
• Article Data: 172

Chemical Properties

• CAS DataBase Reference: Benzene, 1,1'-(1,2-ethenediyl)bis[4-methoxy-, (Z)-(CAS DataBase Reference)
• NIST Chemistry Reference: Benzene, 1,1'-(1,2-ethenediyl)bis[4-methoxy-, (Z)-(2510-75-0)
• EPA Substance Registry System: Benzene, 1,1'-(1,2-ethenediyl)bis[4-methoxy-, (Z)-(2510-75-0)

Safety Data

• Hazardous Substances Data: 2510-75-0(Hazardous Substances Data)

Upstream product

• 110-89-4 piperidine 
• 104-01-8 4-Methoxyphenylacetic acid 
• 123-11-5 4-methoxy-benzaldehyde 
• 60-29-7 diethyl ether 
• 72-43-5 Methoxychlor 
• 925-90-6 ethylmagnesium bromide 
• 4705-34-4 4,4'-dimethoxystilbene 
• 20498-71-9 1,2-bis(4-methoxyphenyl)ethan-1-ol 
• 6258-60-2 p-methoxybenzylmercaptan 
• 959-33-1 3-(4-methoxyphenyl)-1-phenylprop-2-en-1-one 
• 108-05-4 vinyl acetate 
• 696-62-8 para-iodoanisole 
• 33646-40-1 4-methoxymandelonitrile 
• 3462-97-3 (4-methoxybenzyl)triphenylphosphonium bromide 

Downstream Products

• 116915-67-4 (1S,2S,2aR,7bR)-1,2-Bis-(4-methoxy-phenyl)-1,2,2a,7b-tetrahydro-7a-aza-cyclobuta[e]indene 
• 14987-65-6 trans-2,3-Bis(4-methoxyphenyl)oxirane 
• 5032-08-6 2,2-di-(4-methoxyphenyl)acetaldehyde 
• 61732-72-7 meso-1,2-dibromo-1,2-di(4-methoxyphenyl)-2-ethane 
• 39090-33-0 2,3-bis(p-methoxyphenyl)oxirane 
• 121290-20-8 (3S,8aS)-3-(4-Methoxy-phenyl)-8,8a-dihydro-3H-benzo[c][1,2]dioxin-7-one 
• 66768-20-5 (R,R)-(+)-1,2-bis(4-methoxyphenyl)ethane-1,2-diol 
• 122798-27-0 (-)-(2S,3S)-1,2-bis(4-methoxyphenyl)ethane1,2-diol 
• 123-11-5 4-methoxy-benzaldehyde 
• 4705-34-4 1,2-bis(4-methoxyphenyl)ethene 
• 1226-42-2 1,2-bis(4-methoxyphenyl)-1,2-ethanedione 
• 5912-84-5 (E)-1,2-bis(4-methoxyphenyl)prop-1-ene 
• 4464-76-0 1,2-bis(4-methoxyphenyl)ethane-1,2-diol 
• 67307-24-8 Acetic acid 6-methoxy-2,3,4-tris-(4-methoxy-phenyl)-1,2,3,4-tetrahydro-naphthalen-1-yl ester 

Relevant articles and documents

1,2-Diphenylcycloalkenes: Electronic and Geometric Structures in the Gas Phase, Solution, and Solid State

The geometric and electronic structures of several 1,2-diphenylcycloalkenes have been investigated by ultraviolet photoelectron spectroscopy(UPS), optical spectroscopy, X-ray crystal analysis, and theoretical calculations.The 1,2-diphenylcycloalkenes can be viewed as model cis-stilbenes in which cis-trans isomerization is not possible or at least is strongly hindered.In contrast to the unsubstituted cycloalkenes and the monophenylcycloalkenes, the first ionization potential of the diphenylcycloalkenes increases with increasing ring size.Optical spectra show an increasing blue shift of the first absorption band and an increasing Stokes shift with increasing ring size.These results have been compared to model calculations and to X-ray crystal structural data which allow us to establish connections between the changes in geometry and changes in the electronic structure of these systems.These results can only by explained by an increasing loss of planarity (decreasing conjugation) as the ring size increases in the 1,2-diphenylcycloalkene series.

Palladium Complexes with Phenoxy- And Amidate-Functionalized N-Heterocyclic Carbene Ligands Based on 3-Phenylimidazo[1,5- a]pyridine: Synthesis and Catalytic Application in Mizoroki-Heck Coupling Reactions with Ortho-Substituted Aryl Chlorides

Mononuclear and tetranuclear palladium complexes with functionalized "abnormal"N-heterocyclic carbene (aNHC) ligands based on 3-phenylimidazo[1,5-a]pyridine were synthesized. All of the new complexes were structurally characterized by single-crystal X-ray diffraction studies. The new complexes were applied in the Mizoroki-Heck coupling reaction of aryl chlorides with alkenes in neat n-tetrabutylammonium bromide (TBAB). The mononuclear palladium complex with a tridentate phenoxy- and amidate-functionalized aNHC ligand displayed activity superior to that of the palladium complex with a bidentate amidate-functionalized aNHC ligand. The new tetranuclear complex with the tridentate ligand displayed the best activities, capable of the activation of deactivated aryl chlorides as substrates with a low Pd atom loading. Even challenging sterically demanding ortho-substituted aryl chlorides were successfully utilized as substrates. The studies revealed that the robustness of the catalyst precursor is crucial in delivering high catalytic activities. Also, the promising use of tetranuclear palladium complexes with functionalized aNHC ligands as the catalyst precursors in the Mizoroki-Heck coupling reaction in neat TBAB was demonstrated.

Valorisation of urban waste to access low-cost heterogeneous palladium catalysts for cross-coupling reactions in biomass-derived γ-valerolactone

Herein we report a simple protocol for the valorisation of a common urban biowaste. The lignocellulosic biomass obtained after the pre-treatment of pine needle urban waste is efficiently transformed into a low-cost support (PiNe) for the immobilization of Pd nanoparticles. The final Pd/PiNe heterogeneous catalyst features a small particle size (4.5 nm) and a metal loading (9.9 wt%) comparable with most commercially available and generally used counterparts. In this contribution, we tested the catalytic efficiency of the Pd/PiNe system in two representative cross-couplings, Heck and Hiyama reactions, and compared the results obtained with commercial Pd/C catalyst. The good reactivity in the biomass-derived solvent (GVL) confirms that the Pd/PiNe heterogeneous catalyst is a valid system that can be integrated into a waste valorization chain within a circular economy approach. In addition, the efficiency of the catalyst has also been extended to perform the challenging consecutive Hiyama-Heck reaction to afford differently substituted (E)-1,2-diarylethenes.