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239125-36-1

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239125-36-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 239125-36-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,3,9,1,2 and 5 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 239125-36:
(8*2)+(7*3)+(6*9)+(5*1)+(4*2)+(3*5)+(2*3)+(1*6)=131
131 % 10 = 1
So 239125-36-1 is a valid CAS Registry Number.

239125-36-1Downstream Products

239125-36-1Relevant articles and documents

Stereoselective amination of 5-substituted γ-lactones and γ-lactams - A convenient route for the preparation of 5-substituted (3S,5S)-3- acetylaminotetrahydrofuran-2-ones and (3S,5S)-3-acetylaminopyrrolidin-2-ones

Skof, Marko,Svete, Jurij,Kmetic, Matej,Golic-Grdadolnik, Simona,Stanovnik, Branko

, p. 1581 - 1584 (2007/10/03)

5-Substituted (S)-tetrahydrofuran-2-ones (1a,b) and (S)pyrrolidin-2- ones (1c,d) were transformed in three steps, by treatment with tert- butoxybis(dimethylamino)methane (Bredereck's reagent), followed by nitrosation and stereoselective catalytic hydrogenation, into the corresponding 5-substituted (3S,5S)-3-acetylaminotetrahydrofuran-2-ones (4a,b) and (3S,5S)-3-acetylaminopyrrolidin-2-ones (4c,d).

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