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1280725-57-6

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1280725-57-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1280725-57-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,8,0,7,2 and 5 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1280725-57:
(9*1)+(8*2)+(7*8)+(6*0)+(5*7)+(4*2)+(3*5)+(2*5)+(1*7)=156
156 % 10 = 6
So 1280725-57-6 is a valid CAS Registry Number.

1280725-57-6Downstream Products

1280725-57-6Relevant articles and documents

Tandem aldol condensation/platinacycle-catalyzed addition reactions of aldehydes, methyl ketones, and arylboronic acids

Liao, Yuan-Xi,Hu, Qiao-Sheng

supporting information, p. 5897 - 5901,5 (2020/09/02)

Aldol condensation of aldehydes with methyl ketones followed by anionic four-electron donor-based (type I) platinacycle-catalyzed addition reactions of arylboronic acids to form β-arylated ketones is described. Good to excellent yields of β-arylated ketones were obtained for the tandem reactions of aromatic/aliphatic aldehydes, methyl ketones, and arylboronic acids, and moderate yields were observed for the tandem reactions of α,β-unsaturated aldehydes. The aldol condensation of aldehydes with methyl ketones was successfully combined with the platinacycle-catalyzed addition reactions of arylboronic acids in a tandem fashion. A variety of β-arylated ketones was obtained in good to excellent yields.

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