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439607-19-9

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439607-19-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 439607-19-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,3,9,6,0 and 7 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 439607-19:
(8*4)+(7*3)+(6*9)+(5*6)+(4*0)+(3*7)+(2*1)+(1*9)=169
169 % 10 = 9
So 439607-19-9 is a valid CAS Registry Number.

439607-19-9Downstream Products

439607-19-9Relevant articles and documents

Enantioselective Diels-Alder reactions with N-hydroxy-N-phenylacrylamide

Corminboeuf, Olivier,Renaud, Philippe

, p. 1731 - 1733 (2002)

Matrix presented The use of hydroxamic acids as templates for Lewis acid catalyzed enantioselective Diels-Alder reactions has been examined. A very simple chiral Lewis acid, prepared by mixing optically pure binaphthol with 3 equiv of trimethylaluminum, catalyzes the [4 + 2] cycloaddition of N-hydroxy-N-phenylacrylamide with cyclopentadiene at 0°C in high yield (>96%) and with a fairly good level of enantioselectivity (91% ee). Facile conversion of the products to the corresponding alcohols or aldehydes makes the hydroxamic acid intermediates particularly useful.

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