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1229648-41-2

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1229648-41-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1229648-41-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,9,6,4 and 8 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1229648-41:
(9*1)+(8*2)+(7*2)+(6*9)+(5*6)+(4*4)+(3*8)+(2*4)+(1*1)=172
172 % 10 = 2
So 1229648-41-2 is a valid CAS Registry Number.

1229648-41-2Downstream Products

1229648-41-2Relevant articles and documents

Formal synthesis of (-)-Neopeltolide featuring a highly stereoselective oxocarbenium formation/reduction sequence

Martinez-Solorio, Dionicio,Jennings, Michael P.

experimental part, p. 4095 - 4104 (2010/09/11)

The formal synthesis of the unnatural (-)-neopeltolide core is discussed in detail. Efficient application of the Evans protocol for the synthesis of 1,3-syn-diols via an intramolecular hetero-Michael addition followed by reductive deprotection of the resulting benzylidene acetal allowed for swift access to the δ-lactone. Central to the synthetic approach is a tandem nucleophilic addition-diastereoselective axial reduction of an in situ generated oxocarbenium cation to assemble the β-C-glycoside moiety of the neopeltolide core.

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