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162704-76-9

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162704-76-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 162704-76-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,2,7,0 and 4 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 162704-76:
(8*1)+(7*6)+(6*2)+(5*7)+(4*0)+(3*4)+(2*7)+(1*6)=129
129 % 10 = 9
So 162704-76-9 is a valid CAS Registry Number.

162704-76-9Downstream Products

162704-76-9Relevant articles and documents

Nucleophilic C-H Etherification of Heteroarenes Enabled by Base-Catalyzed Halogen Transfer

Puleo, Thomas R.,Klaus, Danielle R.,Bandar, Jeffrey S.

supporting information, p. 12480 - 12486 (2021/08/24)

We report a general protocol for the direct C-H etherification of N-heteroarenes. Potassium tert-butoxide catalyzes halogen transfer from 2-halothiophenes to N-heteroarenes to form N-heteroaryl halide intermediates that undergo tandem base-promoted alcohol substitution. Thus, the simple inclusion of inexpensive 2-halothiophenes enables regioselective oxidative coupling of alcohols with 1,3-azoles, pyridines, diazines, and polyazines under basic reaction conditions.

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