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1217101-99-9

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1217101-99-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1217101-99-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,7,1,0 and 1 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1217101-99:
(9*1)+(8*2)+(7*1)+(6*7)+(5*1)+(4*0)+(3*1)+(2*9)+(1*9)=109
109 % 10 = 9
So 1217101-99-9 is a valid CAS Registry Number.

1217101-99-9Downstream Products

1217101-99-9Relevant articles and documents

Reactivity-controlled regioselectivity: A regiospecific synthesis of 1,2-disubstituted benzimidazoles

Deng, Xiaohu,Mani, Neelakandha S.

experimental part, p. 680 - 686 (2010/03/04)

We demonstrate exceptional levels of regioselectivity in the tandem, animation reactions between 1,2-differentiated dihaloarenes and N-substituted amidines, The regiochemical outcome of this Cul-catalyzed reaction is achieved through a combination of N1/N2 chemoselectivity on the amidine and reactivity-controlled X1/X2 chemoselectivity on the 1,2-dihaloarene. This reaction proves to be fairly general for the regiospecific synthesis of 1,2-substituted benzimidazoles.

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