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220263-59-2

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220263-59-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 220263-59-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,0,2,6 and 3 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 220263-59:
(8*2)+(7*2)+(6*0)+(5*2)+(4*6)+(3*3)+(2*5)+(1*9)=92
92 % 10 = 2
So 220263-59-2 is a valid CAS Registry Number.

220263-59-2Relevant articles and documents

One-pot asymmetric synthesis of either diastereomer of tert-butanesulfinyl- protected amines from ketones

Tanuwidjaja, Jessica,Peltier, Hillary M.,Ellman, Jonathan A.

, p. 626 - 629 (2007)

A one-pot method for the asymmetric synthesis of tert-butanesulfinyl- protected amines is described. Condensation of aryl alkyl and dialkyl ketones with tert-butanesulfinamide followed by in situ reduction with the appropriate reagent provides either dias

Highly efficient asymmetric construction of quaternary carbon-containing homoallylic and homopropargylic amines

Guo, Tao,Song, Ran,Yuan, Bin-Hua,Chen, Xiao-Yang,Sun, Xing-Wen,Lin, Guo-Qiang

supporting information, p. 5402 - 5404 (2013/07/28)

A highly efficient method for the asymmetric synthesis of chiral quaternary carbon-containing homoallylic and homopropargylic amines under mild conditions was achieved with good yields and high diastereoselectivities.

Cycloaddition of chiral tert -butanesulfinimines with trimethylenemethane

Procopiou, George,Lewis, William,Harbottle, Gareth,Stockman, Robert A.

supporting information, p. 2030 - 2033 (2013/06/05)

The cycloaddition of chiral tert-butanesulfinimines with trimethylenemethane is found to give facile access to methylene-pyrrolidines with good yields and diastereoselectivities. The full scope of the cycloaddition is explored, and a range of transformations of the formed methylenepyrrolidines to give a range of functionalized chiral pyrrolidines is presented.

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