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71581-10-7

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71581-10-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 71581-10-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,5,8 and 1 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 71581-10:
(7*7)+(6*1)+(5*5)+(4*8)+(3*1)+(2*1)+(1*0)=117
117 % 10 = 7
So 71581-10-7 is a valid CAS Registry Number.

71581-10-7Relevant articles and documents

Coordination and reactivity of benzyloxycarbonyl-Ala(CN)-OR (R = H, CH3) in complexes of platinum (II)

Campardo, Luana,Gobbo, Marina,Rocchi, Raniero,Bertani, Roberta,Mozzon, Mirto,Michelin, Rino A.

, p. 269 - 273 (2008/10/08)

The conversion of a nitrile to an oxazoline group in an amino acid side chain promoted by platinum(II) was investigated. While benzyloxycarbonyl-β-cyano-alanine (Z-Ala(CN)-OH) did not give any evidence of coordination of the nitrile group to Pt(II) in different complexes, the corresponding methyl ester Z-Ala(CN)-OCH3 readily afforded the Pt(II)-nitrile complex trans-[Pt(CF3){Z-Ala(CN)-OCH3}(PPh3) 2][BF4] in good yield by reaction with the cationic derivative trans-[Pt(CF3)(PPh3)2(solv)][BF4] (solv = CH2Cl2). The reactivity of the CN group in the complex trans-[Pt(CF3){Z-Ala(CN)OCH3}(PPh3) 2] [BF4] with ClCH2CH2O-to form the oxazoline ligand 2 was examined. The presence of the oxazoline ring in the final products was evidenced by IR, 1H and 13C NMR data and confirmed by FAB and MALDI mass spectra, but its isolation was hampered by the cleavage of the oxazoline ring under the chromatographic conditions applied.

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