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40566-92-5

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40566-92-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 40566-92-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,5,6 and 6 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 40566-92:
(7*4)+(6*0)+(5*5)+(4*6)+(3*6)+(2*9)+(1*2)=115
115 % 10 = 5
So 40566-92-5 is a valid CAS Registry Number.

40566-92-5Relevant articles and documents

Tert-Butyl Iodide Mediated Reductive Fischer Indolization of Conjugated Hydrazones

Ito, Yuta,Ueda, Masafumi,Takeda, Norihiko,Miyata, Okiko

, p. 2616 - 2619 (2016/02/26)

A novel reductive Fischer indolization of readily available N-aryl conjugated hydrazones with tert-butyl iodide has been developed. In this reaction, tert-butyl iodide is used as anhydrous HI source, and the generated HI acts as a Br?nsted acid and a reducing agent. This operationally simple method allows access to various indole derivatives. Furthermore, the procedure can be applied to the synthesis of biologically active compounds.

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