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2(3H)-Benzofuranone, 3-ethyl-, also known as 3-ethyl-2(3H)-benzofuranone, is an organic compound with the molecular formula C9H8O2. It belongs to the class of benzofuran derivatives, which are heterocyclic compounds containing a benzene ring fused to a furan ring. This specific compound features an ethyl group (-CH2CH3) attached to the 3-position of the benzofuranone structure. It is a colorless to pale yellow solid and is used as a synthetic intermediate in the preparation of various pharmaceuticals and agrochemicals. Due to its potential applications in the synthesis of biologically active compounds, 3-ethyl-2(3H)-benzofuranone has attracted interest in the field of organic chemistry and drug development.

4374-67-8

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4374-67-8 Usage

Chemical class

2(3H)-Benzofuranone

Substitution

3-ethyl-

Molecular weight

146.185 g/mol

Usage

Fragrance and flavoring agent in the industry, providing a sweet, floral, and spicy aroma to various products

Application

Intermediate in the production of pharmaceuticals and other chemical compounds

Biological activities

Antimicrobial and antioxidant properties.

Check Digit Verification of cas no

The CAS Registry Mumber 4374-67-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,3,7 and 4 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 4374-67:
(6*4)+(5*3)+(4*7)+(3*4)+(2*6)+(1*7)=98
98 % 10 = 8
So 4374-67-8 is a valid CAS Registry Number.

4374-67-8Downstream Products

4374-67-8Relevant academic research and scientific papers

PdI2-catalyzed regioselective cyclocarbonylation of 2-allyl phenols to dihydrocoumarins

Amzquita-Valencia, Manuel,Alper, Howard

, p. 5827 - 5829 (2015/01/08)

A simple, efficient, and regioselective synthesis of 3-methyl-3,4-dihydrocoumarins is reported. The reaction of 2-allyl phenols with synthesis gas was catalyzed by PdI2, and 1,3,5,7-tetramethyl-6-phenyl-2,4,8-trioxa-6-phosphaadamantane (L1) and 1,3,5,7-tetramethyl-6-tetradecyl-2,4,8-trioxa-6-phosphaadamantane (L2) were effective as ligands, affording good product selectivity in all cases.

Rhodium-catalysed cyclic carbonylation of 2-alkynylphenols: Synthesis of benzofuranones and coumarins

Yoneda, Eiji,Sugioka, Takashi,Hirao, Kojiro,Zhahg, Shi-Wei,Takahashi, Shigetoshi

, p. 477 - 483 (2007/10/03)

Rhodium-catalysed carbonylation of 2-alkynylphenols 1 under water-gas shift reaction conditions gives benzofuranone derivatives 2 and coumarin derivatives 3 in high yield (up to 96%, 2:3 = 65:35), in which the hydroxy group adjacent to the carbon-carbon triple bond participitates in the cyclic carbonylation.

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