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71823-42-2

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71823-42-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 71823-42-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,8,2 and 3 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 71823-42:
(7*7)+(6*1)+(5*8)+(4*2)+(3*3)+(2*4)+(1*2)=122
122 % 10 = 2
So 71823-42-2 is a valid CAS Registry Number.

71823-42-2Relevant articles and documents

Highly enantioselective iridium-catalyzed hydrogenation of α,β-unsaturated esters

Li, Jia-Qi,Quan, Xu,Andersson, Pher G.

supporting information, p. 10609 - 10616 (2012/11/07)

α,β-Unsaturated esters have been employed as substrates in iridium-catalyzed asymmetric hydrogenation. Full conversions and good to excellent enantioselectivities (up to 99 % ee) were obtained for a broad range of substrates with both aromatic- and aliphatic substituents on the prochiral carbon. The hydrogenated products are highly useful as building blocks in the synthesis of a variety of natural products and pharmaceuticals. Asymmetric hydrogenation: A variety of α,β-unsaturated esters were hydrogenated with high enantioselectivities (see scheme). The hydrogenated products have been used in synthetic transformations as well as in formal total syntheses. Copyright

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