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3372-02-9

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3372-02-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 3372-02-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,3,7 and 2 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 3372-02:
(6*3)+(5*3)+(4*7)+(3*2)+(2*0)+(1*2)=69
69 % 10 = 9
So 3372-02-9 is a valid CAS Registry Number.
InChI:InChI=1/C16H17NO3/c18-11-3-1-8-7-10-9-2-4-12(19)15-16(9,5-6-17-10)13(8)14(11)20-15/h1-4,9-10,12,15,17-19H,5-7H2/t9?,10-,12+,15+,16+/m1/s1

3372-02-9Downstream Products

3372-02-9Relevant articles and documents

Efficient iron-catalyzed n-demethylation of tertiary amine-N-oxides under oxidative conditions

Kok, Gaik B.,Scammells, Peter J.

, p. 1515 - 1521 (2012/02/04)

An investigation into the influence of oxidative conditions on the efficiency of opiate N-demethylation using iron powder has been carried out under non-classical Polonovski conditions. This approach involves a two-step process of N-oxidation and subsequent treatment of the intermediate N-oxide hydrochloride with the redox catalyst. Significant improvements in rate and yield have been realized for these reactions in the presence of molecular oxygen. In this context, further rate enhancement was achieved by the judicious addition of small amounts of ferric ions, leading to a concomitant reduction in the amount of the zero-valent iron primary catalyst that is required. This has led to a generalized improved methodology for the N-demethylation of oripavine, codeine, morphine, and thebaine. This protocol can also be carried out in one-pot without the need to isolate the intermediate N-oxide.