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852050-28-3

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852050-28-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 852050-28-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,2,0,5 and 0 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 852050-28:
(8*8)+(7*5)+(6*2)+(5*0)+(4*5)+(3*0)+(2*2)+(1*8)=143
143 % 10 = 3
So 852050-28-3 is a valid CAS Registry Number.

852050-28-3Downstream Products

852050-28-3Relevant articles and documents

Cu/Fe/O=PPh3-catalyzed etherification for the synthesis of aryl 3-benzo[b]thienyl ethers

Mitsudo, Koichi,Asada, Takuya,Inada, Tomohiro,Kurimoto, Yuji,Mandai, Hiroki,Suga, Seiji

, p. 1044 - 1047 (2018/08/24)

Cu/Fe-cocatalyzed cross-coupling reactions between 3-bromobenzo[b]thiophene and hydroxyaryls are described herein. The combination of Cu and Fe catalysts is important for the progress of the reactions, and the use of triphenylphosphine oxide as a ligand suppresses the dehalogenation of 3-bromobenzo[b]thiophene, and promptly facilitates the reaction. The obtained aryl benzo[b]thienyl ethers can be converted to π-extended thienobenzofuran derivatives via Pd-catalyzed dehy-drogenative cyclizations.

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