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938443-86-8

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938443-86-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 938443-86-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,3,8,4,4 and 3 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 938443-86:
(8*9)+(7*3)+(6*8)+(5*4)+(4*4)+(3*3)+(2*8)+(1*6)=208
208 % 10 = 8
So 938443-86-8 is a valid CAS Registry Number.

938443-86-8Relevant articles and documents

Facile benzofuran synthesis: Palladium-catalyzed carbonylative Suzuki coupling of methyl 2-(2-iodophenoxy)acetates under CO gas-free conditions

Qi, Xinxin,Zhou, Chao,Peng, Jin-Bao,Ying, Jun,Wu, Xiao-Feng

supporting information, p. 4153 - 4155 (2017/09/29)

A palladium-catalyzed carbonylative Suzuki coupling of methyl 2-(2-iodophenoxy)acetates with arylboronic acids has been developed. The reactions were performed under CO gas-free conditions and the obtained products act as a direct precursor for the synthesis of highly functionalized benzofuran derivatives.

Palladium-catalyzed direct arylation of polysubstituted benzofurans

Carrer, Amandine,Brinet, Dimitri,Florent, Jean-Claude,Rousselle, Patricia,Bertounesque, Emmanuel

experimental part, p. 1316 - 1327 (2012/03/27)

An efficient access to 2-substituted 3-arylbenzofurans through a palladium-catalyzed C3 direct arylation of 2-substituted benzofurans with aryl bromides is described. The scope and limitation of this reaction was studied. The method tolerates a variety of functional groups on the aryl halide and has been successfully extended to polysubstituted benzofurans to obtain the corresponding 3-arylbenzofurans with good to excellent yields.

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