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1039557-09-9

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1039557-09-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1039557-09-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,3,9,5,5 and 7 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1039557-09:
(9*1)+(8*0)+(7*3)+(6*9)+(5*5)+(4*5)+(3*7)+(2*0)+(1*9)=159
159 % 10 = 9
So 1039557-09-9 is a valid CAS Registry Number.

1039557-09-9Relevant articles and documents

Anionic indole N-carbamoyl N → C translocation. A directed remote metalation route to 2-aryl- and 2-heteroarylindoles. Synthesis of benz[a]carbazoles and indeno[1,2-b]indoles

Zhao, Zhongdong,Jaworski, Ashley,Piel, Isabel,Snieckus, Victor

supporting information; experimental part, p. 2617 - 2620 (2009/05/26)

(Chemical Equation Presented) A new LDA-induced anionic N-C carbamoyl migration of 2-arylindoles (7) is reported. Treatment of N-carbamoylindoles 10 and 13, readily available by direct and ipso-borodesilylative Suzuki-Miyaura cross-coupling routes from 8 and 12, respectively, provides a general route to functionalized 2-arylindoles 11 and 14, respectively (Tables 1 and 2). The reaction has been applied to the synthesis of benzo[a]carbazoles 16 and indeno[1,2-b]indoles 18, and its intramolecularity has been established by a crossover experiment (Scheme 4).

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