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849353-73-7

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849353-73-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 849353-73-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,4,9,3,5 and 3 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 849353-73:
(8*8)+(7*4)+(6*9)+(5*3)+(4*5)+(3*3)+(2*7)+(1*3)=207
207 % 10 = 7
So 849353-73-7 is a valid CAS Registry Number.

849353-73-7Downstream Products

849353-73-7Relevant articles and documents

Expeditious photochemical reaction toward the preparation of substituted chroman-4-ones

Iguchi, Daniela,Erra-Balsells, Rosa,Bonesi, Sergio M.

, p. 4653 - 4656 (2014)

A facile photochemical preparation of 5-, 6-, and 7-substituted chroman-4-ones from aryl 3-methyl-2-butenoate esters is described. The two-phase base-catalyzed method relies upon two consecutive processes in one-pot reaction through a photo-Fries rearrangement and a based-catalyzed intramolecular oxa-Michael addition to afford the desired products.

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