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5-Methyl-3-[1-phenyl-meth-(E)-ylidene]-3H-furan-2-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

74143-83-2

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74143-83-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 74143-83-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,1,4 and 3 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 74143-83:
(7*7)+(6*4)+(5*1)+(4*4)+(3*3)+(2*8)+(1*3)=122
122 % 10 = 2
So 74143-83-2 is a valid CAS Registry Number.

74143-83-2Downstream Products

74143-83-2Relevant academic research and scientific papers

One-pot synthesis of E-alkylidene derivatives of 3H-furan-2-ones from 4-pentynoic acid and aldehyde

Lim, Sung-Gon,Kwon, Bong-Il,Choi, Moon-Gun,Jun, Chul-Ho

, p. 1113 - 1116 (2005)

4-Pentynoic acid reacts with aldehyde under the co-catalyst system of Wilkinson's complex and 2-aminopyridine to give E-alkylidene derivatives of 3H-furan-2-one through the transition metal-catalyzed cyclization of 4-pentynoic acid followed by condensatio

3-Arylidene derivatives of 3H-furan-2-ones. Synthesis and reaction with maleic anhydride

Egorova,Reshetov,Morozova,Sedavkina

, p. 910 - 913 (2007/10/03)

The synthesis of 5-alkyl(aryl)-3-arylidene-3H-furan-2-ones was accomplished, and their reaction with maleic anhydride was studied. The configuration, of the initial arylidene derivatives was established on the basis of the PMR spectra of the adducts obtai

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