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207616-64-6

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207616-64-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 207616-64-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,7,6,1 and 6 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 207616-64:
(8*2)+(7*0)+(6*7)+(5*6)+(4*1)+(3*6)+(2*6)+(1*4)=126
126 % 10 = 6
So 207616-64-6 is a valid CAS Registry Number.

207616-64-6Downstream Products

207616-64-6Relevant articles and documents

Regioselective and Stereoselective Transformations of Enantiopure p-Benzoquinone Equivalents

Gerstenberger, Ina,Hansen, Martin,Mauvais, Antony,Wartchow, Rudolf,Winterfeldt, Ekkehard

, p. 643 - 650 (2007/10/03)

The selectivities of typical transformations of the p-benzoquinone Diels-Alder adduct 2 and its dihydro derivative 3 are shown to be highly dependent on the mechanistic path followed. To avoid ambiguities and to make sure of clearly defined regioselectivity, the monoketal 13 was examined and proven not only to be an excellent dienophile but, of course, also to lead to reliable regioselectivity in subsequent transformations. This led to the correction of an earlier provisional assignment of the alkylation products 11 and 12.

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