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81206-47-5

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81206-47-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81206-47-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,2,0 and 6 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 81206-47:
(7*8)+(6*1)+(5*2)+(4*0)+(3*6)+(2*4)+(1*7)=105
105 % 10 = 5
So 81206-47-5 is a valid CAS Registry Number.

81206-47-5Downstream Products

81206-47-5Relevant articles and documents

Condensed heteroaromatic ring systems. XVII. Palladium-catalyzed cross-coupling reaction of aryl bromides with (Z)-1-ethoxy-2-tributylstannylethene and its utilization for construction of condensed heteroaromatics

Sakamoto,Kondo,Yasuhara,Yamanaka

, p. 1877 - 1886 (2007/10/02)

The palladium-catalyzed cross-coupling reaction of bromobenzenes or bromoheteroarenes such as pyridine, thiophene, indole with (Z)-1-ethoxy-2-tributylstannylethene gives good yields of the corresponding (Z)-1-ethoxy-2-(aryl and heteroaryl)ethenes. This method is effective for introducing an ethoxyethenyl group into an aromatic and heteroaromatic ring and is proved to have versatile utility for the construction of benzo[b]furan, indole, isocoumarin rings 2-bromophenol, 2-bromoaniline, and 2-bromobenzoate derivatives.

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