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4-Methoxy-4-oxo-2-phenylbutanoic acid, also known as 4-methoxy-4-oxo-2-phenylbutyric acid, is a chemical compound with the molecular formula C11H12O4. It is a derivative of butyric acid, featuring a phenyl group attached to the second carbon, a methoxy group on the fourth carbon, and a carbonyl group on the same carbon as the methoxy group. This organic compound is a white crystalline solid and is used as an intermediate in the synthesis of various pharmaceuticals and agrochemicals. It is known for its potential applications in the production of drugs, such as anti-inflammatory agents, and in the development of new chemical entities with therapeutic properties.

91143-75-8

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91143-75-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91143-75-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,1,4 and 3 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 91143-75:
(7*9)+(6*1)+(5*1)+(4*4)+(3*3)+(2*7)+(1*5)=118
118 % 10 = 8
So 91143-75-8 is a valid CAS Registry Number.

91143-75-8Relevant academic research and scientific papers

N-Heterocyclic carbene as a Br?nsted base catalyst for the amination of naphthol derivatives and alcoholysis of glutaric anhydrides

Jayakrishnan,Tamilarasu,Jincy,Kaliyamoorthy, Alagiri

, (2019)

A non-covalent Br?nsted-basic N-heterocyclic carbene catalyzed (NHC) Friedel-Crafts type amination of naphthol derivatives using dialkyl azodicarboxylates as the aminating source and alcoholysis of various glutaric anhydrides using alcohol as pronucleophile is presented. Both of these reactions are performed in the presence of either commercially available free-carbene catalyst or in situ-generated carbene catalyst. Friedel-Crafts type amination reaction is an example of a hydroxy group facilitated amination reaction. Both reactions proceed via in situ activations of –OH group by the carbene catalyst through hydrogen bonding interaction and furnish the relevant products in moderate to excellent yields.

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