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122920-70-1

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122920-70-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 122920-70-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,2,9,2 and 0 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 122920-70:
(8*1)+(7*2)+(6*2)+(5*9)+(4*2)+(3*0)+(2*7)+(1*0)=101
101 % 10 = 1
So 122920-70-1 is a valid CAS Registry Number.

122920-70-1Relevant articles and documents

Palladium-Catalyzed Asymmetric Trifluoromethylated Allylic Alkylation of Pyrazolones Enabled by α-(Trifluoromethyl)alkenyl Acetates

Li, Dong,Zhang, Wande,Zhang, Shuaibo,Sun, Wuding,Zhao, Jinfeng,Wang, Baomin,Qu, Jingping,Zhou, Yuhan

, p. 5804 - 5808 (2021)

The first asymmetric trifluoromethylated allylic alkylation of pyrazolones using α-(trifluoromethyl)alkenyl acetates as a novel trifluoromethylated allylation reagent is described, affording various functionalized chiral pyrazolones containing a trifluoromethylated allyl substituent in high yields with excellent regio-/enantio-/diastereoselectivities. Mechanistically, the double-bond migration of α-(trifluoromethyl)alkenyl acetates in the presence of 1,8-diazabicyclo[5.4.0]undec-7-ene is initial and interesting step. More importantly, this study is of significance in providing a novel and widely applicable trifluoromethyl-containing allylation reagent.

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