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D204307

Sigma-Aldrich

Diphenylacetic acid

99%

Synonym(s):

α,α-Diphenylacetic acid, α-Phenylbenzeneacetic acid, 2,2-Diphenylacetic acid, Diphenylethanoic acid

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About This Item

Linear Formula:
(C6H5)2CHCO2H
CAS Number:
117-34-0
Molecular Weight:
212.24
Beilstein:
1910978
EC Number:
204-185-0
MDL number:
MFCD00004251
UNSPSC Code:
12352100
PubChem Substance ID:
24893604
NACRES:
NA.22

Assay

99%

form

powder

mp

146-149 °C
147-149 °C (lit.)

SMILES string

OC(=O)C(c1ccccc1)c2ccccc2

InChI

1S/C14H12O2/c15-14(16)13(11-7-3-1-4-8-11)12-9-5-2-6-10-12/h1-10,13H,(H,15,16)

InChI key

PYHXGXCGESYPCW-UHFFFAOYSA-N

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Application

Diphenylacetic acid can be used as a reagent in the kinetic resolution of racemic 2-hydroxy-γ-butyrolactones and 1-heteroarylalkanols by asymmetric esterification in the presence of pivalic anhydride and chiral acyl-transfer catalyst.
It can also be used as:
  • An additive in the ortho-arylation of 1-phenyl-β-carbolines using various aryl halides in the presence of ruthenium catalyst.
  • A catalyst to synthesize 2-allyl-3-oxazolin-5-one derivatives via Rh-catalyzed coupling reaction of azlactones and alkynes followed by aza-Cope rearrangement.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H302,H319,H412

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 3 - Eye Irrit. 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 2

Flash Point(F)

383.5 °F - closed cup

Flash Point(C)

195.3 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

D204307-100G:
D204307-BULK:
D204307-500G:
D204307-VAR:
D204307-5G:

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Kinetic Resolution of Racemic 1-Heteroarylalkanols by Asymmetric Esterification Using Diphenylacetic Acid with Pivalic Anhydride and a Chiral Acyl-transfer Catalyst
Shiina I, et al.
Chemistry Letters (Jpn), 40(2), 147-149 (2011)
Hugh D Glossop et al.
Biomacromolecules, 20(7), 2515-2529 (2019-05-31)
Peptides can serve as versatile therapeutics with a highly modular structure and tunable biophysical properties. In particular, the efficacy of peptide antibiotics against drug-resistant pathogens is of great promise, as few new classes of antibiotics are being developed to overcome
Jinqiang Kuang et al.
Angewandte Chemie (International ed. in English), 56(29), 8422-8425 (2017-05-18)
Rhodium-catalyzed regioselective addition of azlactones to internal alkynes combined with aza-Cope rearrangement provides efficient atom economic access to 2-allyl-3-oxazolin-5-one derivatives. Extension to a triple domino process, in which the above process is combined with in situ azlactone formation starting from amino
Alison Rinderspacher et al.
Molecules (Basel, Switzerland), 25(2) (2020-01-16)
A novel generation of indole-2,3-quinodimethanes via the deamination of 1,2,3,4-tetrahydropyrrolo[s3,4-b]indoles is reported.
Subramani Rajkumar et al.
The Journal of organic chemistry, 80(11), 5532-5545 (2015-04-11)
A Ru(II)-catalyzed C-H arylation approach has been developed utilizing β-carboline alkaloids as the directing group. Selective formations of diarylated products from moderate to excellent yields were accomplished. Broad substrate scope with excellent functional group tolerance for C1-phenyl/thienyl/PAHs-β-carbolines was demonstrated. X-ray
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