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1124258-92-9

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1124258-92-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1124258-92-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,2,4,2,5 and 8 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1124258-92:
(9*1)+(8*1)+(7*2)+(6*4)+(5*2)+(4*5)+(3*8)+(2*9)+(1*2)=129
129 % 10 = 9
So 1124258-92-9 is a valid CAS Registry Number.

1124258-92-9Relevant articles and documents

Enantioselective Synthesis of Functionalized Quaternary Stereocenters

Manchoju, Amarender,Thorat, Rakesh G.,Pansare, Sunil V.

, p. 5939 - 5943 (2015)

An enantioselective synthesis of functionalized quaternary stereocenters was developed from amino alcohol derived (bromoalkylidene)morpholinones. Stereoselective cross-coupling of the morpholinones with arylboronic acids or alkyl trifluoroborates provided a variety of disubstituted alkylidenemorpholinones. A highly stereoselective Prins reaction of the cross-coupling products generated the target quaternary stereocenter. The Prins products are readily converted into a variety of acyclic, enantiomerically enriched, functionalized building blocks with a quaternary stereocenter.

New general method for regio- and stereoselective allylic substitution with aryl and alkenyl coppers derived from grignard reagents

Kiyotsuka, Yohei,Katayama, Yuji,Acharya, Hukuni P.,Hyodo, Tomonori,Kobayashi, Yuichi

experimental part, p. 1939 - 1951 (2009/08/07)

Allylic substitution with sp2-carbon reagents (aryl and alkenyl anions) was realized by using allylic picolinates and copper reagents derived from RMgBr and CuBr-Me2S to afford anti SN2 products regioand stereoselectively. Steric and electronic factors in the reagents and the size of the methylene substituents around the allylic moiety marginally affected the selectivity. The reaction system was compatible with alkyl reagents as well. Furthermore, the substitution was applied to construction of a quaternary center and synthesis of (-)-sesquichamaenol. Electron-withdrawing nature of the pyridyl group and chelation of the C(=O)-C5H4N to MgBr2 generated in situ were found to be responsible for the high efficiency of the substitution.

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