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1648-99-3

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1648-99-3 Usage

Chemical Properties

clear colorless liquid

Check Digit Verification of cas no

The CAS Registry Mumber 1648-99-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,6,4 and 8 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1648-99:
(6*1)+(5*6)+(4*4)+(3*8)+(2*9)+(1*9)=103
103 % 10 = 3
So 1648-99-3 is a valid CAS Registry Number.
InChI:InChI=1/C2H2ClF3O2S/c3-9(7,8)1-2(4,5)6/h1H2

1648-99-3 Well-known Company Product Price

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  • Aldrich

  • (324787)  2,2,2-Trifluoroethanesulfonylchloride  99%

  • 1648-99-3

  • 324787-250MG

  • 339.30CNY

  • Detail
  • Aldrich

  • (324787)  2,2,2-Trifluoroethanesulfonylchloride  99%

  • 1648-99-3

  • 324787-1G

  • 821.34CNY

  • Detail
  • Aldrich

  • (324787)  2,2,2-Trifluoroethanesulfonylchloride  99%

  • 1648-99-3

  • 324787-5G

  • 3,614.13CNY

  • Detail

1648-99-3Relevant articles and documents

The first example of sulfinatodehalogenation of 2,2,2-trifluoroethyl halides: A novel method for trifluoroethylation of alkenes and alkynes

Long, Zheng-Yu,Chen, Qing-Yun

, p. 8487 - 8490 (1998)

2,2,2-Trifluoroethylation of alkenes and alkynes with 2,2,2- trifluoroethyl iodide or bromide and sodium dithionite in DMSO or CH3CN/H2O can occur under mild conditions.

-

Eleev,A.F. et al.

, (1978)

-

The activation of carbon-chlorine bonds in per- and polyfluoroalkyl chlorides: DMSO-induced hydroperfluoroalkylation of alkenes and alkynes with sodium dithionite

Long, Zheng-Yu,Chen, Qing-Yun

, p. 4775 - 4782 (2007/10/03)

In DMSO, the addition reactions of perfluoroalkyl chlorides, R(F)Cl, to alkenes or alkynes can occur smoothly in the presence of 1.5 equiv of Na2S2O4 and NaHCO3 at 75-80 °C for 4-10 h to give the corresponding adducts (RCH2CH2RF or RCH = CHR(F)). Ethyl chlorofluoro- (1f), chlorodifluoro- (1g) acetates, even nonfluorinated compounds, such as ethyl dichloro- (1h), chloro- (1i) acetates, and chloroform (1j) can undergo the similar reaction. Treatment of ω-iodo (or chloro-) perfluoroalkyl chlorides [X(CF2)(n) Cl, n = 2, 4, X= I or Cl] with > 3 equiv of alkenes and Na2SO4 gives directly the symmetrically disubstituted alkanes (RCH2CH2)2(CF2)(n). The symmetrically and unsymmetrically disubstituted adducts RCH2CH2(CF2)(n)CH2CH2R' from ω-iodoperfluoroalkyl chlorides can be also obtained stepwise, i.e., through the further addition reactions of monoadducts, RCH2CH2(CF2)(n)Cl to olefins. However, for α,ω- dichloroperfluoroalkanes, the similarly stepwise reactions with an alkene is not clean, both bis-adducts and the corresponding ω-hydrides, RCH2CH2(CF2)(n)H as byproducts are also formed. In the absence of alkenes or alkynes, per- and polyfluoroalkyl chlorides can be converted to their sulfinate salts and sulfonyl chlorides.

Amine-Stabilized Sulfenes, their Synthesis and Structure

Hartwig, Uwe,Pritzkow, Hans,Sundermeyer, Wolfgang

, p. 1435 - 1440 (2007/10/02)

The synthesis of quinuclidine-stabilized sulfene of the type XCH2-SO2-C(Y)=SO2- + (5a-d), whereas the corresponding methyl quinuclidinium salts (6a, b) are formed under methanolysis.

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