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1357775-91-7

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1357775-91-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1357775-91-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,5,7,7,7 and 5 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1357775-91:
(9*1)+(8*3)+(7*5)+(6*7)+(5*7)+(4*7)+(3*5)+(2*9)+(1*1)=207
207 % 10 = 7
So 1357775-91-7 is a valid CAS Registry Number.

1357775-91-7Relevant articles and documents

Synthesis and reactivity of an isolable cobalt(I) complex containing a β-diketiminate-based acyclic tetradentate ligand

Marlier, Elodie E.,Ulrich, Bridget A.,McNeill, Kristopher

experimental part, p. 2079 - 2085 (2012/04/23)

A model for cobalamin was synthesized using a new monoanionic tetradentate nitrogen donor ligand; 2-(4- tolyl)-1,3-bis(2-isopropylpyridyl)propenediimine (Tol- BDI(2-pp)2H) (1), which utilizes isopropylpyridines as pendant arms on a β-diketiminate (BDI) backbone. During the synthesis of 1, the rearrangement product, Tol-BDI(2-pp)(4-pp)H (2) was observed. Metalation of 1 with zinc iodide and cobalt chloride yielded the corresponding Tol-BDI(2-pp)2ZnI (3) and Tol-BDI(2-pp)2CoCl (4) complexes. The redox properties of 4 in comparison to cobalamin were examined through electrochemical studies. Electrochemical and bulk reduction of complex 4 gave a diamagnetic cobalt(I) complex, Tol-BDI(2-pp)2Co (5). Reactivity of 5 toward C-X bonds was investigated using methyl iodide and 1-iodo-2-(trimethylsilyl)acetylene, yielding Tol-BDI(2-pp)2Co(CH 3)I and Tol-BDI(2-pp)2Co(C2Si(CH 3)3)I respectively. Synthesis and characterization details for these complexes, including the crystal structure of 3, are reported.

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