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259857-60-8

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259857-60-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 259857-60-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,9,8,5 and 7 respectively; the second part has 2 digits, 6 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 259857-60:
(8*2)+(7*5)+(6*9)+(5*8)+(4*5)+(3*7)+(2*6)+(1*0)=198
198 % 10 = 8
So 259857-60-8 is a valid CAS Registry Number.

259857-60-8Downstream Products

259857-60-8Relevant articles and documents

Regiodivergent kinetic resolution of terminal and internal rac -aziridines with malonates under dinuclear schiff base catalysis

Xu, Yingjie,Kaneko, Keiichi,Kanai, Motomu,Shibasaki, Masakatsu,Matsunaga, Shigeki

, p. 9190 - 9194 (2014/07/08)

Regiodivergent parallel kinetic resolution of aziridines with malonates was achieved under dinuclear Schiff base catalysis. The regiodivergent reaction proceeded under catalyst-control irrespective of the substituents on the aziridines, and 2.5-10 mol % of a Y(OTf)3/La(OiPr)3/a dinucleating Schiff base = 1:1:1 mixture gave versatile γ-amino acid derivatives in 96 → >99.5% ee. Not only terminal but also internal racemic aziridines reacted smoothly under suitably combined Lewis acid/Br?nsted base catalysis.

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