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104560-41-0

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104560-41-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 104560-41-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,4,5,6 and 0 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 104560-41:
(8*1)+(7*0)+(6*4)+(5*5)+(4*6)+(3*0)+(2*4)+(1*1)=90
90 % 10 = 0
So 104560-41-0 is a valid CAS Registry Number.

104560-41-0Upstream product

104560-41-0Downstream Products

104560-41-0Relevant articles and documents

Cu-catalyzed arylation of bromo-difluoro-acetamides by aryl boronic acids, aryl trialkoxysilanes and dimethyl-aryl-sulfonium salts: New entries to aromatic amides

Iaroshenko, Viktor O.,Jakubczyk, Micha?,Lanka, Suneel,Mkrtchyan, Satenik,Pittelkow, Michael

, (2021/06/12)

We describe a mechanism-guided discovery of a synthetic methodology that enables the preparation of aromatic amides from 2-bromo-2, 2-difluoroacetamides utilizing a copper-catalyzed direct arylation. Readily available and structurally simple aryl precursors such as aryl boronic acids, aryl trialkoxysilanes and dimethyl-aryl-sulfonium salts were used as the source for the aryl substituents. The scope of the reactions was tested, and the reactions were insensitive to the electronic nature of the aryl groups, as both electron-rich and electron-deficient aryls were successfully introduced. A wide range of 2-bromo-2, 2-difluoroacetamides as either aliphatic or aromatic secondary or tertiary amides were also reactive under the developed conditions. The described synthetic protocols displayed excellent efficiency and were successfully utilized for the expeditious preparation of diverse aromatic amides in good-to-excellent yields. The reactions were scaled up to gram quantities.

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