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145122-89-0

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145122-89-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 145122-89-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,5,1,2 and 2 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 145122-89:
(8*1)+(7*4)+(6*5)+(5*1)+(4*2)+(3*2)+(2*8)+(1*9)=110
110 % 10 = 0
So 145122-89-0 is a valid CAS Registry Number.

145122-89-0Relevant articles and documents

Asymmetric Synthesis of α-Amino Acids and α-N-Hydroxyamino Acids from N-Acylbornane-10,2-sultams: 1-Chloro-1-nitrosocyclohexane as a Practical +> Equivalent

Oppolzer, Wolfgang,Tamura, Osamu,Deerberg, Joerg

, p. 1965 - 1978 (2007/10/02)

Successive treatment of N-acylsultams 3 with sodium hexamethyldisilazide, 1-chloro-1-nitrosocyclohexane (1), and aq.HCl gave diastereoisomerically pure, crystalline N-hydroxyamino-acid derivatives 5.These were converted into various amino acids 7, N-hydroxyamino acids 8, and an N-Boc-amino acid 9. (S,S)-Isoleucine (17) and (S,S)-2-acetamido-3-phenylbutyric acid (23) were obtained from N-crotonoylsultam 15 via 1,4-addition of an organomagnesium or organocopper reagent followed by enolate 'amination' with 1.

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