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68423-18-7

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68423-18-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 68423-18-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,8,4,2 and 3 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 68423-18:
(7*6)+(6*8)+(5*4)+(4*2)+(3*3)+(2*1)+(1*8)=137
137 % 10 = 7
So 68423-18-7 is a valid CAS Registry Number.

68423-18-7Relevant articles and documents

Electrophilic Trifluoromethylthiolation/Semipinacol Rearrangement: Preparation of β-SCF3 Carbonyl Compounds with α-Quaternary Carbon Center

Xi, Chao-Chao,Chen, Zhi-Min,Zhang, Shu-Yu,Tu, Yong-Qiang

, p. 4227 - 4230 (2018/07/29)

A new and modular electrophilic trifluoromethylthiolation/semipinacol rearrangement of allylic silyl ethers has been developed under mild conditions. This approach allows the formation of a number of β-SCF3 carbonyl compounds with a cyclic and all-carbon quaternary center framework in moderate to good yields. It should be noted that this achievement is a metal-free process and just requires the use of simple acetyl chloride as an acidic promoter. Additionally, an interesting H-migration in competition with aryl-migration process was revealed.

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