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164228-31-3

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164228-31-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 164228-31-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,4,2,2 and 8 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 164228-31:
(8*1)+(7*6)+(6*4)+(5*2)+(4*2)+(3*8)+(2*3)+(1*1)=123
123 % 10 = 3
So 164228-31-3 is a valid CAS Registry Number.

164228-31-3Relevant articles and documents

Synthesis of the salutaridine and aporphine skeleton via palladium(0) catalyzed cyclization and S(RN)1 reaction of 2'-bromoreticulines

Wiegand,Schafer

, p. 5341 - 5350 (2007/10/02)

The intramolecular aryl-aryl-coupling reactions of 2'-bromoreticulines are described. Their regioselectivity depends on the cyclization method. The palladium(0) catalyzed reaction of 22 leads preferentially to the salutaridine derivative 27, whilst via the photochemically induced S(RN)1 reaction of 22 the aporphine skeleton 24 is obtained.

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