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1351990-67-4

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1351990-67-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1351990-67-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,5,1,9,9 and 0 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1351990-67:
(9*1)+(8*3)+(7*5)+(6*1)+(5*9)+(4*9)+(3*0)+(2*6)+(1*7)=174
174 % 10 = 4
So 1351990-67-4 is a valid CAS Registry Number.

1351990-67-4Downstream Products

1351990-67-4Relevant articles and documents

Completely N1-selective palladium-catalyzed arylation of unsymmetric imidazoles: Application to the synthesis of nilotinib

Ueda, Satoshi,Su, Mingjuan,Buchwald, Stephen L.

supporting information; experimental part, p. 700 - 706 (2012/03/07)

The completely N1-selective Pd-catalyzed arylation of unsymmetric imidazoles with aryl halides and triflates is described. This study showed that imidazoles have a strong inhibitory effect on the in situ formation of the catalytically active Pd(0)-ligand complex. The efficacy of the N-arylation reaction was improved drastically by the use of a preactivated solution of Pd2(dba)3 and L1. From these findings, it is clear that while imidazoles can prevent binding of L1 to Pd, once the ligand is bound to the metal, these heterocycles do not displace it. The utility of the present catalytic system was demonstrated by the regioselective synthesis of the clinically important tyrosine kinase inhibitor nilotinib.

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