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1301638-20-9

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1301638-20-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1301638-20-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,0,1,6,3 and 8 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1301638-20:
(9*1)+(8*3)+(7*0)+(6*1)+(5*6)+(4*3)+(3*8)+(2*2)+(1*0)=109
109 % 10 = 9
So 1301638-20-9 is a valid CAS Registry Number.

1301638-20-9Downstream Products

1301638-20-9Relevant academic research and scientific papers

Asymmetric direct michael addition of acetophenone to α,β- unsaturated aldehydes

Li, Wenjun,Wu, Wenbin,Yang, Juanjuan,Liang, Xinmiao,Ye, Jinxing

experimental part, p. 1085 - 1091 (2011/05/14)

The asymmetric direct Michael addition of ,-unsaturated aldehydes with acetophenone catalyzed by a Jorgensen-Hayashi-catalyst in methanol was developed and the corresponding Michael products of -keto aldehydes could be afforded in up to 82% yield and 98% ee. Georg Thieme Verlag Stuttgart.

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