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210302-61-7

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210302-61-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 210302-61-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,0,3,0 and 2 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 210302-61:
(8*2)+(7*1)+(6*0)+(5*3)+(4*0)+(3*2)+(2*6)+(1*1)=57
57 % 10 = 7
So 210302-61-7 is a valid CAS Registry Number.

210302-61-7Relevant articles and documents

Oxidative cross-coupling of ββ-difluoroenol silyl ethers with nucleophiles: A dipole-inversion method to difluoroketones

Uneyama, Kenji,Tanaka, Hiroaki,Kobayashi, Satoru,Shioyama, Manabu,Amii, Hideki

, p. 2733 - 2736 (2004)

Oxidative cross-coupling of α-aryl-β,β-difluoroenol silyl ethers with heteroaromatics in the presence of Cu(OTf)2 in wet acetonitrile proceeds smoothly, affording heteroaryldifluoromethyl aryl ketones in 61-88% yields. Alcohols also react as nu

Photoredox-catalyzed redox-neutral difluoroalkylation to construct perfluoroketones with difluoroenoxysilanes

Lin, Wu-Jie,Liu, Xue-Yuan,Sun, Wen-Hui,Wang, Yu-Zhao,Zou, Jian-Yu

supporting information, p. 8696 - 8700 (2021/10/22)

A mild and facile approach to construct various perfluoroketonesviaphoto-catalyzed difluoroalkylation of difluoroenoxysilanes is developed. The reaction includes a strategy of combination of two fluorine-containing functional groups, which confers the reaction with characteristics like high efficiency, mild conditions, and broad scope. A variety of fluoroalkyl halides including perfluoroalkyl iodides, bromo difluoro esters and amides can be employed as radical precursors. Control experiments indicate that a single-electron transfer pathway may be involved in the reaction.

Trifluoromethylthiolation, Trifluoromethylation, and Arylation Reactions of Difluoro Enol Silyl Ethers

Jiang, Xingguo,Meyer, Denise,Baran, Dominik,Cortés González, Miguel A.,Szabó, Kálmán J.

, p. 8311 - 8319 (2020/07/16)

This study reports a new application area of difluoro enol silyl ethers, which can be easily obtained from trifluoromethyl ketones. The main focus has been directed to the electrophilic fluoroalkylation and arylation methods. The trifluoromethylthiolation of difluoro enol silyl ethers can be used for the construction of a novel trifluoromethylthio-α,α-difluoroketone (-COCF2SCF3) functionality. The -CF2SCF3 moiety has interesting properties due to the electron-withdrawing, albeit lipophilic, character of the SCF3 group, which can be combined with the high electrophilicity of the difluoroketone motif. The methodology could also be extended to difluoro homologation of the trifluoromethyl ketones using the Togni reagent. In addition, we presented a method for transition-metal-free arylation of difluoro enol silyl ethers based on hypervalent iodines.

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