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1228183-94-5

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1228183-94-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1228183-94-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,8,1,8 and 3 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1228183-94:
(9*1)+(8*2)+(7*2)+(6*8)+(5*1)+(4*8)+(3*3)+(2*9)+(1*4)=155
155 % 10 = 5
So 1228183-94-5 is a valid CAS Registry Number.

1228183-94-5Relevant articles and documents

[3+3] cyclodimerization of methylenecyclopropanes: Stoichiometric and catalytic reactions of Nickel(0) with electron-deficient alkylidenecyclopropanes

Ohashi, Masato,Taniguchi, Tomoaki,Ogoshi, Sensuke

, p. 2386 - 2389 (2010/08/05)

Stoichiometric treatment of Ni(cod)2 with ethyl cyclopropylideneacetate (ECPA) in the presence of PCy3 resulted in an unpredicted formation of a Ni(0) complex bearing an (E,E)-1,2-bis(exo- alkylidene)cyclohexane ligand, which stemmed from the [3 + 3] cyclodimerization of ECPA. The reaction could be expanded to a Ni(0)-catalyzed [3 + 3] cyclodimerization reaction of ester-substituted methylenecyclopropanes, giving the corresponding cyclohexane derivatives in excellent yields.

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