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1429616-70-5

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1429616-70-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1429616-70-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,2,9,6,1 and 6 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1429616-70:
(9*1)+(8*4)+(7*2)+(6*9)+(5*6)+(4*1)+(3*6)+(2*7)+(1*0)=175
175 % 10 = 5
So 1429616-70-5 is a valid CAS Registry Number.

1429616-70-5Downstream Products

1429616-70-5Relevant articles and documents

General and efficient synthesis of 2,3-unsubstituted indoles catalyzed by acidic mesoporous molecular sieves

Sun, Nan,Hong, Lingfen,Huang, Fang,Ren, Hong,Mo, Weimin,Hu, Baoxiang,Shen, Zhenlu,Hu, Xinquan

supporting information, p. 3927 - 3933 (2013/06/27)

A general and efficient method for the synthesis of 2,3-unsubstituted indoles has been established by the intramolecular cyclization of N-benzyl 2-anilinoacetals. Acidic mesoporous molecular sieve (MCM-41-SO3H) has shown excellent catalytic activity on this transformation, and the 2,3-unsubstituted indoles bearing 7-substituent or strong electron-withdrawing substituents also could be achieved by this protocol. Moreover, the heterogeneous catalyst, MCM-41-SO3H, could be conveniently recovered and reused without obvious loss of the catalytic activity. This work will provide an economic and environmental-benign method for the construction of various indole derivatives.

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