4720-99-4

Basic information

• Product Name: Benzaldehyde, 4,4'-(1,2-ethenediyl)bis-
• CAS NO: 4720-99-4
• Molecular Formula: C16H12O2
• Molecular Weight: 236.27
• Mol File: 4720-99-4.mol
• Article Data: 6

Chemical Properties

• CAS DataBase Reference: Benzaldehyde, 4,4'-(1,2-ethenediyl)bis-(CAS DataBase Reference)
• NIST Chemistry Reference: Benzaldehyde, 4,4'-(1,2-ethenediyl)bis-(4720-99-4)
• EPA Substance Registry System: Benzaldehyde, 4,4'-(1,2-ethenediyl)bis-(4720-99-4)

Safety Data

• Hazardous Substances Data: 4720-99-4(Hazardous Substances Data)

Usage

Description

Benzaldehyde, 4,4'-(1,2-ethenediyl)bis-, also known as dibenzaldehyde, is a colorless liquid chemical compound with the molecular formula C14H12O2. It possesses a distinctive almond-like odor and is widely used in various industries due to its versatile properties.

Uses

Used in Flavoring and Fragrance Industry:
Benzaldehyde, 4,4'-(1,2-ethenediyl)bisis used as a flavoring agent for imparting almond-like flavor to food products and as a fragrance ingredient in perfumes, due to its characteristic almond-like odor.
Used in Dye and Perfume Production:
It is used as a key intermediate in the production of dyes and perfumes, contributing to the development of a wide range of colorants and aromatic compounds.
Used in Pharmaceutical Industry:
Benzaldehyde, 4,4'-(1,2-ethenediyl)bisis utilized in the synthesis of various pharmaceuticals, playing a crucial role in the development of drugs with diverse therapeutic applications.
Used in Manufacturing of Resins and Rubber Chemicals:
It serves as a vital component in the manufacturing of resins and rubber chemicals, enhancing the properties and performance of these materials.
Used as a Solvent in the Plastics Industry:
Benzaldehyde, 4,4'-(1,2-ethenediyl)bisis employed as a solvent in the plastics industry, aiding in the processing and production of various plastic materials.

Upstream product

• 1122-91-4 4-bromo-benzaldehyde 
• 589-15-1 1-bromomethyl-4-bromobenzene 
• 51044-13-4 4-bromobenzyl triphenylphosphonium bromide 
• 23958-29-4 (Z)-4,4'-dibromostilbene 
• 68-12-2 N,N-dimethyl-formamide 
• 588-59-0 stilbene 
• 74-85-1 ethene 

Downstream Products

• 110056-61-6 4,4'-Bis-(1-hydroxy-ethyl)-stilben 
• 1205553-45-2 C₄₆H₄₄O₆ 
• 66888-70-8 (Z)-4,4'-bis(hydroxymethyl)stilbene 

Relevant articles and documents

Activation of Aptamers with Gain of Function by Small-Molecule-Clipping of Intramolecular Motifs

Click reactions have the advantages of high reactivity, excellent orthogonality, and synthetic accessibility. Inspired by click reactions, we propose the concept of “clipped aptamers”, whose binding affinity is regulated by the “clip”-like specific intera

Alternating oligo(o,p-phenylenes) via ruthenium catalyzed diol-diene benzannulation: orthogonality to cross-coupling enables de novo nanographene and PAH construction

Ruthenium(0) catalyzed diol-diene benzannulation is applied to the conversion of oligo(p-phenylene vinylenes) 2a-c, 5 and 6 to alternating oligo(o,p-phenylenes) 10a-c, 11-13. Orthogonality with respect to conventional palladium catalyzed biaryl cross-coup

Synthesis and Intramolecular Electron- and Energy-Transfer Reactions of Polyyne- or Polyene-Bridged Diporphyrins

A series of geometrically restricted polyyne- or polyene-bridged diporphyrins 1-7 has been prepared by a convenient, one-pot, double porphyrin cyclization reaction in acceptable yields from the corresponding dialdehydes 1-7CHO.Polyene-bridged diporphyrins 8 and 9 were prepared by a double Horner-Emmons-Wadsworth reaction of formyl-substituted zinc-porphyrin monomer 12 with bis-phosphonate esters 13 and 14, respectively.The diporphyrins 1-9 were transformed into zinc-free-base and zinc-ferric hybrid diporphyrins.Photoinduced intramolecular electron transfer in the zinc-ferric hybrid diporphyrins as well as intramolecular excitation energy transfer in the zinc-free-base hybrid diporphyrins have been studied by picosecond time-resolved fluorescence spectroscopy.Rate constants through the polyene-bridges are larger than those through the polyyne-bridges in both reactions.The distance dependence of the electron-transfer rate was found to be quite small: the attenuation factors were determined to be 0.08 and 0.1 Angstroem-1 for the polyene- and polyyne-bridged diporphyrins, respectively.The distance dependence of the energy-transfer rate was quite similar to that of the electron transfer and was explained better by the Dexter mechanism rather than by the Foerster mechanism.These results clearly demonstarate that the linear ?-conjugated polyyne and polyene spacers enhance through-bond electronic coupling between the donor and acceptor.