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1280725-52-1

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1280725-52-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1280725-52-1 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 2 respectively.
Calculate Digit Verification of CAS Registry Number 1280725-52:
(9*1)+(8*2)+(7*8)+(6*0)+(5*7)+(4*2)+(3*5)+(2*5)+(1*2)=151
151 % 10 = 1
So 1280725-52-1 is a valid CAS Registry Number.

1280725-52-1Downstream Products

1280725-52-1Relevant articles and documents

Sequential aldol Condensation-Transition metal-Catalyzed addition reactions of aldehydes, methyl ketones, and arylboronic acids

Liao, Yuan-Xi,Xing, Chun-Hui,Israel, Matthew,Hu, Qiao-Sheng

, p. 2058 - 2061 (2011/06/19)

Sequential aldol condensation of aldehydes with methyl ketones followed by transition metal-catalyzed addition reactions of arylboronic acids to form β-substituted ketones is described. By using the 1,1′;-spirobiindane- 7,7′;-diol (SPINOL)-based phosphite, an asymmetric version of this type of sequential reaction, with up to 92% ee, was also realized. Our study provided an efficient method to access β-substituted ketones and might lead to the development of other sequential/tandem reactions with transition metal-catalyzed addition reactions as the key step.

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