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741681-35-6

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741681-35-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 741681-35-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,4,1,6,8 and 1 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 741681-35:
(8*7)+(7*4)+(6*1)+(5*6)+(4*8)+(3*1)+(2*3)+(1*5)=166
166 % 10 = 6
So 741681-35-6 is a valid CAS Registry Number.

741681-35-6Relevant articles and documents

Synthesis of enantiopure 1-aryl-1-butylamines and 1-aryl-3-butenylamines by diastereoselective addition of allylzinc bromide to imines derived from (R)-phenylglycine amide

Dalmolen, Jan,Van Der Sluis, Marcel,Nieuwenhuijzen, Jose W.,Meetsma, Auke,De Lange, Ben,Kaptein, Bernard,Kellogg, Richard M.,Broxterman, Quirinus B.

, p. 1544 - 1557 (2007/10/03)

The synthesis of enantiopure 1-aryl-1-butylamines via a highly diastereoselective addition of allylzinc bromide to imines derived from (R)-phenylglycine amide is reported. These are synthesised by a three-step procedure, which involves: (a) formation of the chiral imines; (b) asymmetric addition of the allylzinc reagent; (c) removal of the chiral auxiliary by means of a reductive or non-reductive method. The reductive method provides 1-aryl-1-butylamines whereas the non-reductive method preserves the double bond to afford 1-aryl-3-butenylamines. Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004.

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