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8-ethyl-3,3a,8,8a-tetrahydro-1H-indeno<1,2-c>furan-1-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

143994-22-3

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143994-22-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 143994-22-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,9,9 and 4 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 143994-22:
(8*1)+(7*4)+(6*3)+(5*9)+(4*9)+(3*4)+(2*2)+(1*2)=153
153 % 10 = 3
So 143994-22-3 is a valid CAS Registry Number.

143994-22-3Downstream Products

143994-22-3Relevant academic research and scientific papers

Furan-2(3H)- and 2(5H)-ones. Part 5. Photoreaction of 3-Benzylfuran-2(5H)-ones; Cyclisation to Indenofuranones

Muraoka, Osamu,Tanabe, Genzoh,Sano, Kyohko,Minematsu, Toshie,Momose, Takefumi

, p. 1833 - 1846 (2007/10/02)

The effect of substitution at the 'central methane' on the photoreactivity of 3-benzylfuran-2(5H)-ones 5a-g was investigated.Despite its di-?-methane structure, photochemical arylation was effected to give substituted indenofuranones 6 in good yields.Only

A BREAKTHROUGH FOR THE PHOTOCHEMICAL ARYLATION IN THE 3-(PHENYLMETHYL)-2(5H)-FURANONE SYSTEM LEADING TO THE TETRAHYDROINDENOFURANONE SYSTEM

Muraoka, Osamu,Tanabe, Genzoh,Sano, Kyohko,Momose, Takefumi

, p. 1093 - 1096 (2007/10/02)

The photochemistry of the 'central methane'-substituted 3-benzyl-2(5H)-furanone system (1) is described.Despite its di-?-methane structure, photochemical arylation was found to predominate in place of the di-?-methane rearrangement, and gave substituted t

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