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271583-72-3

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271583-72-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 271583-72-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,7,1,5,8 and 3 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 271583-72:
(8*2)+(7*7)+(6*1)+(5*5)+(4*8)+(3*3)+(2*7)+(1*2)=153
153 % 10 = 3
So 271583-72-3 is a valid CAS Registry Number.

271583-72-3Relevant articles and documents

Asymmetric addition of trimethylsilylcyanide to N-benzylimines catalyzed by recyclable chiral dimeric V(V) salen complex

Khan, Noor-ul H.,Saravanan,Kureshy, Rukhsana I.,Abdi, Sayed H.R.,Sadhukhan, Arghya,Bajaj, Hari C.

experimental part, p. 1133 - 1137 (2010/06/13)

Chiral dimeric vanadium (V) salen complex (10 mol%) derived from 5,5-Methylene di-[(S,S)-{N-(3-tert-butyl salicylidine)-N′-(3′,5′-di-tert-butyl salicylidene)]-1,2-cyclohexanediamine] with vanadyl suphate followed by auto oxidation was used as efficient catalyst for enantioselective Strecker reaction of N-benzylimines with TMSCN at -30 °C. Excellent yield (92%) of α-aminonitrile and high chiral induction was achieved (ee up to 94%) in case of 2-methoxy substituted N-benzylimines in 10 h. The catalytic system worked well up to four cycles with retention of enantioselectivity.

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