1924-29-4

Usage

Uses

Used in the Polymer Industry:
(E)-α,β-Bis(benzoyloxy)stilbene is used as a photoinitiator for [initiating polymerization reactions] in the polymer industry, particularly in UV-curing processes for [coatings and adhesives]. Its ability to initiate these reactions upon exposure to UV light makes it a [valuable ingredient] in the production of a wide range of polymer materials.
Used in Biological Imaging:
(E)-α,β-Bis(benzoyloxy)stilbene has been studied for its potential use as a [fluorescent probe] in biological imaging, due to its specific properties that may be harnessed for [visualizing biological processes or structures]. However, further research is required to fully explore and understand its potential in this application area.
Used in Pharmaceutical Research:
(E)-α,β-Bis(benzoyloxy)stilbene has also been investigated for its [anti-inflammatory and antioxidant properties], which could make it useful in the development of new drugs or therapies. As research progresses, it may find applications in treating various conditions related to inflammation or oxidative stress.

Upstream product

• 109-99-9 tetrahydrofuran 
• 98-88-4 benzoyl chloride 
• 119-53-9 2-hydroxy-2-phenylacetophenone 
• 21240-34-6 4,5-diphenyl-1,3-dioxol-2-one 
• 134-81-6 benzil 
• 93-97-0 benzoic acid anhydride 
• 262-89-5 dibenzo[a,e]cyclooctatetraene 
• 618-32-6 Benzoyl bromide 
• 618-38-2 benzoyl iodide 

Downstream Products

• 501-65-5 diphenyl acetylene 
• 65-85-0 benzoic acid 

Relevant academic research and scientific papers

Methylsulfinyl (Dimsyl) anion as umpolung catalyst for the chemoselective cross-benzoin reaction of α-diketones with aldehydes

The hitherto unreported ability of the methylsulfinyl carbanion (dimsyl anion) to generate acyl anion equivalents is described. The dimsyl anion, in fact, efficiently catalyzes chemoselective intermolecular cross-benzoin condensations of diaryl α-diketones (benzils) with various aromatic and aliphatic aldehydes to give the corresponding aryl-aryl and aryl-alkyl benzoin benzoates in an atom-economic fashion. The dimsyl anion acts as an environmentally friendly alternative to the toxic cyanide anion and it is obtained by in situ deprotonation of dimethyl sulfoxide (DMSO) solvent with a catalytic amount of a strong base, potassium tert-butoxide (t-BuOK) the optimal promoter. The assumption that the methylsulfinyl carbanion is the active catalyst in the title transformation is supported by electrospray ionization mass spectrometry (ESI-MS) experiments. Copyright

Electroreductive coupling of aromatic acyl bromides to 1,2-diketones

The direct electroreduction of aromatic acyl bromides gave aromatic 1,2-diketones. The best result was obtained using a Pb cathode in acetonitrile containing Bu4NClO4 as a supporting electrolyte. Aromatic acyl bromides substituted by an electron-donating group afforded 1,2-diketones in moderate-to-good yields, whereas acylated endiols were formed exclusively from aromatic acyl bromides substituted by an electron-withdrawing group.

2,2-Dibutyl-1,3,2-dioxastannolens

Acyloins or their enediol carbonates (vinylene carbonates) react with dibutyltin oxide or dibutyltin dimethoxide to give 2,2-dibutyl-1,2,3-dioxastannolens . 119Sn N.m.r. and 119mSn Moessbauer spectra, and molecular weight measurements suggest that, in the solid state or in concentrated solution, the dioxastannolen (A) is associated, but the monomer is present in dilute solution.On heating, (A) decomposes into benzil and products which appear to be derived from dibutylstannylene, and it reacts with oxygen to give benzil and products derived from dibu- tyltin oxide.Acetyl chloride reacts to give cis-stilbene diacetate, but less reactive acylating agents (e.g. acetic anhydride or benzoyl chloride) give an increasing amount of the trans-diester and cyclic anhydrides (e.g. phthalic anhydride), and diacid chlorides (e.g. phosgene) give cyclic esters.

Studies on the Occurence of Hydrogen Transfer, 67. Enediol Diesters by Acylating Electroreductive Dimerization of Acyl Chlorides with Lithium Amalgam

Aromatic, aliphatic, and aromatic-aliphatic acyl chlorides (and anhydrides) are transformed by lithium amalgam (Li/Hg) to cis- and/or trans enediol diesters 1-10 (acylating reductive dimerization), mostly in ca. 70percent yields.The influence of the solvent on the reaction course is investigated.Starting from 2,2'-biphenyldicarbonyl dichloride, the phenanthrene 7 is formed; phthalide 8 is the reaction-product using phthaloyl dichloride as starting material.Diphenylphosphinyl chloride is reduced by Li/Hg to tetraphenyldiphosphane dioxide (15).A reaction mechanism for the acylating reductive dimerization is proposed on the basis of the halve-wave potentials determined for 12 acyl chlorides and four 1,2-diketones.The latter are intermediates in the acylating reductive dimerization of the acyl chlorides.Enediol diesters are obtained starting from 1,2-diketones and Li/Hg in the presence of acyl chlorides.Trimethylsilyl chloride is unsuitable as a trap for the enediols; it is preferentially reduced at the Li/Hg interface.Tetrahydrofuran as solvent is transformed to RC(O)O-4-Cl by a known ring-opening acylation reaction in the presence of Lewis acids (LiCl or ZnCl2) formed by the decomposition of Li/Hg and Zn/Hg.

TRANSITION METAL-PROMOTED REACTIONS. X. PENTACARBONYLIRON-PROMOTED REDUCTIVE COUPLING OF BENZOYL CHLORIDE IN HALOBENZENES

Reductive coupling of benzoyl chloride to give trans- and cis-α,α'-stilbenediol dibenzoates is found to be promoted by pentacarbonyliron.The mechanism is briefly discussed.