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6,7-Dicyan-2,3,3a,7a-tetrahydro-2-methyl-4-(triphenylphosphoranylidenamino)benzofuran-3a-carbonsaeure-ethylester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

103148-79-4

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103148-79-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 103148-79-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,3,1,4 and 8 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 103148-79:
(8*1)+(7*0)+(6*3)+(5*1)+(4*4)+(3*8)+(2*7)+(1*9)=94
94 % 10 = 4
So 103148-79-4 is a valid CAS Registry Number.

103148-79-4Relevant academic research and scientific papers

Heterocyclic β-Enamino Esters, 44: 2,3,3a,7a-Tetrahydrobenzofurans, -benzothiophene, and 2,3,3a,7a-Tetrahydroindole by Cycloaddition with Cyanoacetylene

Wamhoff, Heinrich,Fassbender, Franz-Josef,Hermes, Dieter,Knoch, Falk,Appel, Rolf

, p. 2723 - 2730 (2007/10/02)

With two molecules cyanoacetylene the (4,5-dihydro-2-furyl- (1a-c), -2-pyrrolinyl- (1d), and -2-thienylimino (1e))triphenylphosphoranes and the furan β-enaminonitrile 1f afford the 2,3,3a,7a-tetrahydrobenzofurans 2a-c,f, the 2,3,3a,7a-tetrahydroindole 2d, and the benzothiophene 2e, respectively.The structure of 2b is established by X-ray diffraction.

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