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200118-20-3

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200118-20-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 200118-20-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,0,1,1 and 8 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 200118-20:
(8*2)+(7*0)+(6*0)+(5*1)+(4*1)+(3*8)+(2*2)+(1*0)=53
53 % 10 = 3
So 200118-20-3 is a valid CAS Registry Number.

200118-20-3Downstream Products

200118-20-3Relevant articles and documents

Asymmetric Synthesis of Alkyl Fluorides: Hydrogenation of Fluorinated Olefins

Ponra, Sudipta,Yang, Jianping,Kerdphon, Sutthichat,Andersson, Pher G.

, p. 9282 - 9287 (2019/05/28)

The development of new general methods for the synthesis of chiral fluorine-containing molecules is important for several scientific disciplines. We herein disclose a straightforward method for the preparation of chiral organofluorine molecules that is ba

Direct electrophilic α-fluorination of imines: Efficient synthesis of mono-and difluoroimines

Verniest, Guido,Van Hende, Eva,Surmont, Riccardo,De Kimpe, Norbert

, p. 4767 - 4770 (2007/10/03)

(Chemical Equation Presented) A mild and efficient procedure to synthesize α-fluoro- and α,α-difluoroimines was developed. Various N-alkylimines derived from acetophenones were successfully monofluorinated using NFSI (N-fluorobenzenesulfonimide) in a mixture of CH3CN and DMF at 0°C. Alternatively, the same procedure without DMF gave rise to difluorinated imines when performed at room temperature. The obtained α- and α,α-difluorinated imines were subsequently reduced to give the corresponding β-fluoro- and β,β-difluoroamines in good yield.

Diastereoselective electrophilic fluorination of enantiopure α-silylketones using N-fluoro-benzosulfonimide: Regio- and enantioselective synthesis of α-fluoroketones

Enders,Faure,Potthoff,Runsink

, p. 2307 - 2319 (2007/10/03)

α-Fluoroketones 6 are synthesized in good yields and high enantiomeric excesses (ee = 87-≥96%) from the corresponding simple cyclic and acyclic ketone precursors. The procedure involves a regio- and diastereoselective electrophilic fluorination of enantio

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