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342649-04-1

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342649-04-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 342649-04-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,4,2,6,4 and 9 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 342649-04:
(8*3)+(7*4)+(6*2)+(5*6)+(4*4)+(3*9)+(2*0)+(1*4)=141
141 % 10 = 1
So 342649-04-1 is a valid CAS Registry Number.

342649-04-1Relevant articles and documents

Stereocontrolled C(sp3)-P bond formation with non-activated alkyl halides and tosylates

Yang, Chu-Ting,Han, Jun,Liu, Jun,Li, Yi,Zhang, Fan,Gu, Mei,Hu, Sheng,Wang, Xiaolin

, p. 24652 - 24656 (2017/07/11)

The C(sp3)-P bond is formed via the reaction between P-H compounds and non-activated alkyl electrophiles, especially secondary alkyl halides and tosylates. This reaction proceeds via an SN2 mechanism with inversion of configuration, so it can be used to form C-P bonds with stereocontrol from chiral secondary alcohols.

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