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128947-02-4

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128947-02-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128947-02-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,9,4 and 7 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 128947-02:
(8*1)+(7*2)+(6*8)+(5*9)+(4*4)+(3*7)+(2*0)+(1*2)=154
154 % 10 = 4
So 128947-02-4 is a valid CAS Registry Number.

128947-02-4Relevant articles and documents

N-Alkenoylimidazolidin-2-ones as chiral dienophiles in Diels-Alder cycloaddition reactions

Roos, Gregory H. P.,Kriel, Karina N.,Emslie, Neville D.,Balasubramaniam, Sundari

, p. 104 - 112 (2007/10/03)

Homochiral N-enoylimidazolidin-2-ones 5-8 are readily accessible, practical, and highly diastereoselective dienophiles in dialkylaluminium-promoted Diels-Alder reactions. Acrylate, methacrylate, and (E)-crotonate derivatives bearing ephedrine-based imidaz

A Practical and Efficient Large-Scale Preparation of (4R,58)-N-Propenoyl-1,5-dimethyl-4-phenylimidazolidin-2-one. A Simple Procedure for the Preparation of N-Acylimidazolidin-2-ones and N-Acylbornane 2,10-Sultams

Clark, William M.,Bender, Corey

, p. 6732 - 6734 (2007/10/03)

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Dibutylboron triflate promoted conjugate addition of benzylic and allylic organocopper reagents to chiral α,β-unsaturated N-acyl imidazolidinones

Van Heerden, Pieter S.,Bezuidenhoudt, Barend C.B.,Ferreira, Daneel

, p. 1821 - 1824 (2007/10/03)

The organocopper-Lewis acid system, RCu-TMEDA-Bu2BOTf, is useful for conjugate addition to highly constrained chiral α,β-unsaturated N-acyl imidazolidinones. In comparison with the corresponding TMSCl-activated reagents, Bu2BOTf exhi

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