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769923-10-6

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769923-10-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 769923-10-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,6,9,9,2 and 3 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 769923-10:
(8*7)+(7*6)+(6*9)+(5*9)+(4*2)+(3*3)+(2*1)+(1*0)=216
216 % 10 = 6
So 769923-10-6 is a valid CAS Registry Number.

769923-10-6Upstream product

769923-10-6Downstream Products

769923-10-6Relevant articles and documents

Regioselective aryl radical cyclization: Access to pyrimidine-annelated Spiro heterocycles through 5-exo ring closure

Majumdar,Mukhopadhyay

, p. 1864 - 1868 (2004)

Aryl radical cyclization of a range of 6-(2′- bromophenoxymethyl)-1,3-dimethyluracils 4a-g was carried out with tributyltin chloride and sodium cyanoborohydride in the presence of AIBN for four hours to give exclusively the '5-exo' cyclization products, 1,3-dimethylspiro[pyrimidine- 6,3′-2′,3′-tetrahydrobenzofuran]-2,4-diones 5a-g in 92-95% yield. The starting materials were in turn prepared in 90-92% yield by refluxing 6-chloro methyl-1,3-dimethyl uracil with various 2-bromophenols or 2-bromonaphthol in acetone in the presence of anhydrous potassium carbonate for eight hours.

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