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92127-20-3

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92127-20-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 92127-20-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,2,1,2 and 7 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 92127-20:
(7*9)+(6*2)+(5*1)+(4*2)+(3*7)+(2*2)+(1*0)=113
113 % 10 = 3
So 92127-20-3 is a valid CAS Registry Number.

92127-20-3Relevant articles and documents

CLAISEN-REARRANGEMENT-MEDIATED RING CONTRACTION OF MACROCYCLIC LACTONES A NEW APPROACH TO CARBOCYCLES AND HETEROCYCLES

Funk, Raymond L.,Abelman, Matthew, M.,Munger, John D.

, p. 2831 - 2846 (2007/10/02)

Macrocyclic ketene acetals 3 undergo Claisen rearrangements smoothly and constitute a viable and general approach to hetero- or carbocyclic ring systems 4.This novel ring contraction process is subject to high internal asymmetric induction (cf. lactones 7 -> carbocycles 8) as well as relative asymmetric induction in the rearrangements of ketene acetals derived from lactones 18, 23 and 27.Finally, N-benzoylmeroquinene methyl ester (37) was prepared to demonstrate the potential of this methodology in heterocycle synthesis.

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