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101864-30-6

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101864-30-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 101864-30-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,1,8,6 and 4 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 101864-30:
(8*1)+(7*0)+(6*1)+(5*8)+(4*6)+(3*4)+(2*3)+(1*0)=96
96 % 10 = 6
So 101864-30-6 is a valid CAS Registry Number.

101864-30-6Relevant articles and documents

Diastereoselective Grignard Additions to O-Protected Polyhydroxylated Ketones: A Reaction Controlled by Groundstate Conformation?

Mulzer, Johann,Pietschmann, Catarina,Buschmann, Jürgen,Luger, Peter

, p. 3938 - 3943 (2007/10/03)

The O-protected polyhydroxy ketones 9-14 and 39, 42 add σ-type Grignard reagents with >90:10 stereoselectivity to give the 3,4-syn-adducts 17-22 and 43, 45, respectively, as the major diastereomers (Tables 1 and 2). The stereoselectivity is interpreted in terms of early transition states which are very close to the groundstate conformations shown in Figure 6 and 7. These demonstrate that the "top face" of the carbonyl group is much less shielded than the "bottom" face, Complexation phenomena are of minor importance. It is also shown that the classical transition state models (Felkin-Anh or chelate Cram) are not applicable to polyoxygenated ketones.

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