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77570-37-7

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77570-37-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77570-37-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,5,7 and 0 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 77570-37:
(7*7)+(6*7)+(5*5)+(4*7)+(3*0)+(2*3)+(1*7)=157
157 % 10 = 7
So 77570-37-7 is a valid CAS Registry Number.

77570-37-7Relevant articles and documents

Lewis Acid-Catalyzed Additions of (Benzotriazol-1-yl)diethoxymethane to Enol Ethers and Enamides. New Syntheses of β-Alkoxyalkanal and β-Aminoalkanal Acetals

Katritzky, Alan R.,Belyakov, Sergei A.,Rachwal, Bogumila,Moutou, Jean-Luc

, p. 700 - 705 (2007/10/03)

Addition of (benzotriazol-1-yl)diethoxymethane 11 to various acyclic and cyclic enol ethers and enamides produces the corresponding adducts, which were reacted with either NaAlH4 or Grignard reagents to afford acyclic acetal-ethers (18a-f), cyclic α-(substituted)-β-acetals (19a-c), amino-acetals (24a,b), and 1,3-amino-ethers (25), all known but previously difficult-to-access classes of compounds.

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