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177490-74-3

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177490-74-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 177490-74-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,7,4,9 and 0 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 177490-74:
(8*1)+(7*7)+(6*7)+(5*4)+(4*9)+(3*0)+(2*7)+(1*4)=173
173 % 10 = 3
So 177490-74-3 is a valid CAS Registry Number.

177490-74-3Downstream Products

177490-74-3Relevant articles and documents

Silicon directed ipso-substitution of polymer bound arylsilanes: Preparation of biaryls via the Suzuki cross-coupling reaction

Han, Yongxin,Walker, Shawn D.,Young, Robert N.

, p. 2703 - 2706 (2007/10/03)

A method for attaching haloarylsilanes to polymer support was developed. The polymer bound arylhalide were reacted with a variety of ArB(OH)2 under the Suzuki cross-coupling reaction conditions and the coupled resins were cleaved by different electrophiles to give ipso-substitution products in good yields.

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