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874341-58-9

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874341-58-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 874341-58-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,4,3,4 and 1 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 874341-58:
(8*8)+(7*7)+(6*4)+(5*3)+(4*4)+(3*1)+(2*5)+(1*8)=189
189 % 10 = 9
So 874341-58-9 is a valid CAS Registry Number.

874341-58-9Relevant articles and documents

Expedient synthesis of cyclopropane α-amino acids by the catalytic asymmetric cyclopropanation of alkenes using iodonium ylides derived from methyl nitroacetate

Moreau, Benoit,Charette, Andre B.

, p. 18014 - 18015 (2005)

A highly enantioselective (up to 97.5% ee) and diastereoselective (95:5 dr trans/cis) Cu(I)-catalyzed cyclopropanation of alkenes using phenyliodonium ylide generated in situ from iodosobenzene and methyl nitroacetate is reported. The cyclopropanation took place with high enantioselectivity for a wide range of alkenes, and the reaction was performed at room temperature. 1-Nitrocyclopropyl esters are versatile building blocks to access the corresponding cyclopropane amino esters and aminocyclopropanes in two and three steps, respectively, from commercially available products. Copyright

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