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54367-97-4

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54367-97-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 54367-97-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,3,6 and 7 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 54367-97:
(7*5)+(6*4)+(5*3)+(4*6)+(3*7)+(2*9)+(1*7)=144
144 % 10 = 4
So 54367-97-4 is a valid CAS Registry Number.

54367-97-4Relevant articles and documents

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Klemm,Ziffer

, p. 274 (1956)

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Enantioselective Protonation of Silyl Enol Ethers Catalyzed by a Chiral Pentacarboxycyclopentadiene-Based Bronsted Acid

An, Shaoyu,Li, Jun,Li, Pingfan,Yuan, Chao

supporting information, p. 1317 - 1320 (2019/06/19)

The enantioselective protonation of silyl enol ethers was realized in the presence of a pentacarboxycyclopenta-1,3-diene-based chiral Bronsted acid catalyst with water as an achiral proton source to give the corresponding α-aryl ketones in good yields and up to 75percent ee.

p-Toluenesulfonic acid catalysed fluorination of α-branched ketones for the construction of fluorinated quaternary carbon centres

Tang, Shi-Zhong,Bian, Hong-Li,Zhan, Zong-Song,Chen, Meng-En,Lv, Jian-Wei,Xie, Shaolei,Zhang, Fu-Min

supporting information, p. 12377 - 12380 (2018/11/30)

A p-toluenesulfonic acid catalyzed fluorination of α-branched ketones for the construction of fluorinated quaternary carbon centers has been developed, featuring a broad substrate scope, environmentally benign reaction conditions, and operational simplicity.

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