118466-21-0

Basic information

• Product Name: Phosphonic acid, [(4-benzoylphenyl)methyl]-, diethyl ester
• CAS NO: 118466-21-0
• Molecular Formula: C18H21O4P
• Molecular Weight: 332.336
• Mol File: 118466-21-0.mol

Chemical Properties

• CAS DataBase Reference: Phosphonic acid, [(4-benzoylphenyl)methyl]-, diethyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: Phosphonic acid, [(4-benzoylphenyl)methyl]-, diethyl ester(118466-21-0)
• EPA Substance Registry System: Phosphonic acid, [(4-benzoylphenyl)methyl]-, diethyl ester(118466-21-0)

Safety Data

• Hazardous Substances Data: 118466-21-0(Hazardous Substances Data)

Usage

Uses

Used in Pharmaceutical and Agrochemical Industries:
Phosphonic acid, [(4-benzoylphenyl)methyl]-, diethyl ester is used as a reactive intermediate in the synthesis of pharmaceuticals and agrochemicals. Its unique structure allows it to be incorporated into the development of new drugs and pesticides, enhancing their effectiveness and targeting specific biological pathways.
Used in Metal Ion Extraction:
Phosphonic acid, [(4-benzoylphenyl)methyl]-, diethyl ester serves as a chelating agent in metal ion extraction processes. Its ability to form stable complexes with metal ions makes it an effective agent for separating and purifying metal ions from various sources, such as industrial waste streams or natural resources.
Used in Plastics and Polymers Industry:
Phosphonic acid, [(4-benzoylphenyl)methyl]-, diethyl ester is used as a stabilizer in plastics and polymers. Its incorporation into these materials helps to improve their stability, resistance to degradation, and overall performance, making them suitable for a wide range of applications.
Used in Catalysis:
Phosphonic acid, [(4-benzoylphenyl)methyl]-, diethyl ester has potential applications in the field of catalysis. Its unique structure and reactivity make it a promising candidate for use as a catalyst or catalyst support in various chemical reactions, enhancing the efficiency and selectivity of these processes.
Used as a Corrosion Inhibitor:
Phosphonic acid, [(4-benzoylphenyl)methyl]-, diethyl ester can be used as a corrosion inhibitor in various industrial applications. Its ability to form protective layers on metal surfaces helps to prevent corrosion and extend the service life of equipment and structures.
However, it is important to handle Phosphonic acid, [(4-benzoylphenyl)methyl]-, diethyl ester with caution, as it may have harmful effects on human health and the environment. Proper safety measures and disposal methods should be followed to minimize any potential risks associated with its use.

Upstream product

• 78-40-0 triethyl phosphate 
• 32752-54-8 4-(bromomethyl)benzophenone 
• 134-84-9 4-Methylbenzophenone 
• 122-52-1 triethyl phosphite 
• 78-38-6 ethylphosphonic acid diethyl ester 

Downstream Products

• 119885-32-4 C₃₃H₂₅NO 
• 1046811-93-1 C₄₈H₃₅NO₂ 
• 1046811-94-2 C₆₃H₄₅NO₃ 
• 53178-88-4 4,4′-dibenzoylstilbene 
• 1310739-11-7 4-(p-benzoyl-styrenyl)-4'-(p'-nitro-styrenyl)triphenylamine 
• 1310739-09-3 4-(p-benzoylstyryl)-4'-(3,4,5-trimethoxystyryl)-triphenylamine 
• 1310739-08-2 4-(p-benzoyl-styrenyl)-4'-(styrenyl)-triphenylamine 
• 1008513-75-4 [4-(hydrazono-phenyl-methyl)-benzyl]phosphonic acid diethyl ester 
• 203246-07-5 [(4-Benzoyl-phenyl)-difluoro-methyl]-phosphonic acid diethyl ester 
• 114496-48-9 <(benzoylphenyl)methyl>phosphonic acid 

Relevant articles and documents

Conjugated dyes carrying N, N-dialkylamino and ketone groups: One-component visible light Norrish type II photoinitiators

This work presents new conjugated dyes carrying N, N-dialkylamino and ketone groups for using as one-component Norrish type II visible light photoinitiators. The novel dyes without ketone group were also synthesized to compose two-component visible light photoinitiators for comparisons. The target dyes show the remarkable absorption in visible light region. Photo-differential scanning calorimetry was employed to study visible light photoinitiating polymerization kinetics of methyl methacrylate by new one-component photoinitiators and two-component photoinitiators respectively. The results suggest that the one-component photoinitiators showed much more efficient photoinitiating polymerization of methyl methacrylate than the two-component photoinitiating systems under visible light irradiation. The molecular weight of visible light photopolymer produced by the new photoinitiators was determined. The visible light photoinitiating mechanism of the one-component photoinitiators was studied by absorption and emission spectra, electron spin resonance spectra and cyclic voltammograms analysis.

Stilbene-based reactive compounds, polymeric matrices formed therefrom, and articles visualizable by fluorescence

The invention is directed to latent reactive and polymerizable derivatives of fluorescent stilbene-based compounds. The compounds can be used to provide articles with a fluorescence property, such as medical devices (e.g., catheters). The fluorescent comp

STILBENE-BASED REACTIVE COMPOUNDS, POLYMERIC MATRICES FORMED THEREFROM, AND ARTICLES VISUALIZABLE BY FLUORESCENCE

The invention is directed to latent reactive and polymerizable derivatives of fluorescent stilbene-based compounds. The compounds can be used to provide articles with a fluorescence property, such as medical devices (e.g., catheters). The fluorescent compounds can be used in association with polymers, or can be incorporated into polymers, and the polymers used in a coating composition on the article surface. The compounds allow for visual or machine inspection of coating properties such as uniformity of coverage.

Synthesis and spectroscopy of novel branched fluorescent dyes containing benzophenone parts and the possibility as fluorescence probes

This paper describes a new fluorescent family of branched dyes containing benzophenone unit including 4-N, N-diphenylamino-4′-phenacyl-stilbene (C1), 4,4′-di(4-benzoylphenylethylene)yl-triphenylamine (C2) and 4,4′,4″-tri(4-benzoylphenylethylene)yl-triphenylamine (C3). Benzophenone part is coupled with core through C-C double bond. The chemical structures of the derivatives are characterized with 1H and 13C nuclear magnetic resonance and elemental analysis. Strong π-π stacking interactions are discovered with the analysis of the X-ray crystallographic data of C1. The absorption maxima and emission maxima of the derivatives exhibit gradual bathochromic shift from C1 to C3. The optical density of C1, C2 and C3 are shown to be related to the number of branches. The changes of dipole moments between the excited and ground states for C1, C2 and C3 were estimated to be 4.356, 8.091 and 8.479 Derby, respectively by Lippert equation, confirming that the internal charge transfer (ICT) dominates the process of excited singlet state. The possibility as fluorescence probes of the derivatives on the estimation of what region of micelles interacting with samples was evaluated.

Two-photon optical properties of novel branched conjugated derivatives carrying benzophenone moiety with various electron donor-acceptor substituent groups

This paper presents a range of novel new branched conjugated dyes containing benzophenone moiety. As compared with those of 4-(p-benzoyl-styrene) yl-4′-(styrene)yl-triphenylamine (C1) and 4-(p-benzoyl-styrene)yl- 4′-3,4,5-trimethoxyl-styrene)yl-triphenylamine (C2), the maximal linear absorption and emission wavelength of 4-(p-benzoyl-styrene)yl-4′- (p′-nitro-styrene)yl-triphenylamine (C3) displays red-shifted remarkably, While the fluorescence quantum yields of C3 are lower than those of C1 and C2 in various solvents. The fluorescence lifetimes of the derivatives were measured, and radiative and non-radiative transition constants of the derivatives were calculated. Two-photon absorption (TPA) optical data of the derivatives were measured by Ti:sapphire femtosecond laser tuning from 720 to 880 nm at intervals of 20 nm. TPA induced fluorescence emission of C3 is red-shifted with respected to that of C1 and C2. TPA cross sections of C3 are larger than those of C1 and C2 in various excited laser frequencies. TPA cross section of C2 and C3 are much larger than those of 3,4,5-(trimethoxylstyrene)yl-triphenylamine (C4) and 4-(p-nitrostyrene)yl-triphenylamine (C5) respectively under various near-IR Ti:sapphire femtosecond laser wavelength. C1 and C2 show similar one- and two- photon optical nature. Geometry optimization with ab initio method confirms that C3 has different electron density distribution, the energy levels in frontier orbitals, the dipole moment changes, the absorption and emission spectroscopy from those of C1 and C2. The cyclic voltammograms of the derivatives were detected in methylene chloride at various scan rates, and the energy of frontier orbials were estimated further from the redox potentials.

TAILORED CONTROL OF SURFACE PROPERTIES BY CHEMICAL MODIFICATION

A process for producing a substrate having an adhesive surface, which process comprises: (a) contacting the substrate with a carbene precursor, which carbene precursor is a compound of the following formula (1): whose substituent groups are SP defined herein, provided that when R is aryl or heteroaryl, said aryl or heteroaryl may be substituted by one, two, three, four or five groups, which groups are independently selected from various groups including -LB-WB; and (b) either: (i) when WA or WB comprises an adhesive functional group, generating a carbene reactive intermediate from the carbene precursor so that it reacts with the substrate to functionalise the surface, thereby yielding said substrate having an adhesive surface; or (ii) when WA or WB comprises a group which is a precursor of an adhesive functional group, generating a carbene reactive intermediate from the carbene precursor so that it reacts with the substrate to functionalise the surface, and (c) converting said group which is a precursor into an adhesive functional group thereby yielding said substrate having an adhesive surface. The invention further relates to carbene precursor compounds for use in the process, substrates produced by the process and to processes for preparing certain precursor compounds.

Two-photon absorption properties of novel conjugated dyes containing a benzophenone unit

A variety of new conjugated dyes bearing a benzophenone unit were synthesized, and the linear absorption and emission were determined. Two-photon absorption properties of the derivatives have been measured by a Ti:sapphire femtosecond laser tuning from 720 to 880 nm at intervals of 20 nm. One- and two-photon optical properties of the derivatives were found to be significantly dependent on their chemical structures.

Synthesis of aryl(difluoromethylenephosphonates) via electrophilic fluorination of α-carbanions of benzylic phosphonates with N- fluorobenzenesulfonimide.

The electrophilic fluorination of a wide variety of benzylic phosphonates with N-fluorobenzenesulfonimide has been examined. The fluorination reaction proceeds well in the presence of an array of functional groups such as nitro, bromo, ketone, ester, phenyl and ether groups. Phenyl and biphenyl derivatives containing two α,α-difluoromethylenephosphonate groups can also be prepared. This procedure is compatible with methyl or ethyl phosphonate esters but not with t-butyl esters or with benzylic phosphonates containing an additional benzylic moiety at the para-position.

PHOTOCHEMICAL C-P BOND CLEAVAGE OF BENZOYLBENZYLPHOSPHONIC ACIDS

Benzoylbenzylphosphonic acids (p- and m-) easily underwent photochemical C-P bond cleavage in a basic aqueous ethanol solution to give methylbenzophenone, orthophosphate, and ethyl phosphate.