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toluene-4-sulfonic acid (E)-4,4,4-trifluorobut-2-enyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

280776-40-1

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280776-40-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 280776-40-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,8,0,7,7 and 6 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 280776-40:
(8*2)+(7*8)+(6*0)+(5*7)+(4*7)+(3*6)+(2*4)+(1*0)=161
161 % 10 = 1
So 280776-40-1 is a valid CAS Registry Number.

280776-40-1Relevant academic research and scientific papers

A Copper(I)-Catalyzed Enantioselective γ-Boryl Substitution of Trifluoromethyl-Substituted Alkenes: Synthesis of Enantioenriched γ,γ-gem-Difluoroallylboronates

Kojima, Ryoto,Akiyama, Sota,Ito, Hajime

, p. 7196 - 7199 (2018)

The first catalytic enantioselective γ-boryl substitution of CF3-substituted alkenes is reported. A series of CF3-substituted alkenes was treated with a diboron reagent in the presence of a copper(I)/Josiphos catalyst to afford the c

Systematic study of the reactivity of (E)-4,4,4-trifluorobut-2-en-1-yl 4-methylbenzenesulfonate towards different classes of nucleophiles

Forcellini, Elsa,Hemelaere, Rémy,Desroches, Justine,Paquin, Jean-Fran?ois

, p. 216 - 221 (2015)

A systematic study of the reactivity of (E)-4,4,4-trifluorobut-2-en-1-yl 4-methylbenzenesulfonate towards different classes of nucleophiles (alcohols, amines, thiols and malonates) was performed. A single set of reaction conditions (with small variations) allowed the isolation of the substitution product in moderate to good yields for all the nucleophiles tested with the exception of benzyl alcohol and indole.

2-OXO-1-IMIDAZOLIDINYL IMIDAZOTHIADIAZOLE DERIVATIVES

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Page/Page column 29-30, (2019/01/30)

The present invention relates to 2-oxo-1-imidazolidinyl imidazothiadiazole derivatives, processes for preparing them, pharmaceutical compositions containing them and their use as pharmaceuticals.

Copper-Catalyzed Asymmetric Defluoroborylation of 1-(Trifluoromethyl)Alkenes

Gao, Pan,Yuan, Chengkai,Zhao, Yue,Shi, Zhuangzhi

supporting information, p. 2201 - 2211 (2018/10/02)

gem-Difluoroalkenes have steric and electronic profiles similar to those of ketones, aldehydes, and esters, and consequently have been used widely as carbonyl isosteres in modern drug discovery. Although many attempts have been made to achieve gem-difluor

4-SUBSTITUTED PYRR0LIDIN-2-0NES AND THEIR USE

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Page/Page column 24, (2010/11/26)

The present invention relates to optically enriched or substantially optically pure 4-substituted-pyrrolidin-2-ones of formula (III), and their uses for the synthesis of 2-oxo-pyrrolidin-l-yl derivatives.

Nematic liquid crystals with a trifluoromethyl group

Kelly, Stephen M.,Skelton, Graham,Jones, Cliff,Minter, Vicki,Tuffin, Rachel

, p. 873 - 880 (2007/10/03)

We have synthesised a new class of compounds incorporating a trifluoromethyl group in the terminal alkoxy or alkenyloxy chain. Compounds containing several aromatic rings were synthesised with a view to producing compounds of high birefringence. This also

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