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1579249-56-1

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1579249-56-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1579249-56-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,5,7,9,2,4 and 9 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1579249-56:
(9*1)+(8*5)+(7*7)+(6*9)+(5*2)+(4*4)+(3*9)+(2*5)+(1*6)=221
221 % 10 = 1
So 1579249-56-1 is a valid CAS Registry Number.

1579249-56-1Relevant articles and documents

Synthesis of quaternary carbon stereocenters by copper-catalyzed asymmetric allylic substitution of allyl phosphates with arylboronates

Takeda, Momotaro,Takatsu, Keishi,Shintani, Ryo,Hayashi, Tamio

, p. 2354 - 2367 (2014/04/17)

A copper-catalyzed asymmetric allylic substitution of γ,γ- disubstituted allyl phosphates with arylboronates has been developed for the construction of quaternary stereocenters. High regio- and enantioselectivities have been achieved by employing a hydroxy-bearing chiral N-heterocyclic carbene ligand, and both E and Z substrates provide the same enantiomer as the major product. The mechanistic aspect of this catalysis has also been investigated to find that a 1:1 copper/ligand complex is most likely responsible for the present asymmetric catalysis, and the reaction proceeds with almost perfect 1,3-anti stereochemistry with respect to the allylic electrophile.

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