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921930-88-3

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921930-88-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 921930-88-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,2,1,9,3 and 0 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 921930-88:
(8*9)+(7*2)+(6*1)+(5*9)+(4*3)+(3*0)+(2*8)+(1*8)=173
173 % 10 = 3
So 921930-88-3 is a valid CAS Registry Number.

921930-88-3Relevant articles and documents

Enantioselective addition of diethylzinc to aldehydes catalyzed by monosubstituted [2.2]paracyclophane-based N,O-ligands: remarkable cooperative effects of planar and central chiralities

Sugiyama, Shigeo,Aoki, Yoshinori,Ishii, Keitaro

, p. 2847 - 2856 (2006)

Diastereomeric monosubstituted [2.2]paracyclophane-based N,O-ligands, which unite the planar and central chiral elements, were optimized for the enantioselective diethylzinc addition to aldehydes. (S)-1-{(Sp)-[2.2]Paracyclophan-4-yl}methyl-2-pyrrolidine-α,α-diphenylmethanol (Sp,S)-3 catalyzed the addition to give (R)-1-phenyl-1-propanol in a high yield and with a good enantioselectivity (91% ee).

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