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437717-31-2

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437717-31-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 437717-31-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,3,7,7,1 and 7 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 437717-31:
(8*4)+(7*3)+(6*7)+(5*7)+(4*1)+(3*7)+(2*3)+(1*1)=162
162 % 10 = 2
So 437717-31-2 is a valid CAS Registry Number.

437717-31-2Downstream Products

437717-31-2Relevant articles and documents

Simultaneously Electrogenerated Cycloaddition Partners for Regiospecific Inverse-Electron-Demand Diels-Alder Reactions: A Route for Polyfunctionalized 1,4-Benzoxazine Derivatives

Blattes, Estelle,Fleury, Maurice-Bernard,Largeron, Martine

, p. 882 - 890 (2007/10/03)

A multistep one-pot electrochemical synthesis of a variety of complex 2-alkylamino-1,4-benzoxazine derivatives is described. The reactions are regiospecific and diastereospecific in the case of heterocyclic annulation. This cascade sequence, wherein both cycloaddition partners are generated in situ, at room temperature, under metal-free conditions, allows the inverse-electron-demand Diels-Alder reaction of an o-iminoquinone diene and a secondary alkylenamine dienophile, two chemically nonaccessible unstable entities. To increase the molecular diversity, a variant in which the enamine is separately prepared completes the aforementioned procedure. The extension of this reaction should be useful to generate libraries of heterocycles.

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