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(E)-4,4,4-Trifluoro-3-(2-iodo-4-nitro-phenylamino)-but-2-enoic acid ethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

183989-95-9

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183989-95-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 183989-95-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,3,9,8 and 9 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 183989-95:
(8*1)+(7*8)+(6*3)+(5*9)+(4*8)+(3*9)+(2*9)+(1*5)=209
209 % 10 = 9
So 183989-95-9 is a valid CAS Registry Number.

183989-95-9Downstream Products

183989-95-9Relevant academic research and scientific papers

Synthesis of indoles and quinolones by sequential Wittig and Heck reactions

Latham, Elliot J.,Stanforth, Stephen P.

, p. 2059 - 2063 (2007/10/03)

Trifluoroacetamido derivatives 18a-c and 19a-c react with phosphorane 2 in boiling toluene to give the corresponding enamines 12a-c and 13a-c respectively which are precursors of the trifluoromethylated indoles 14a-c and quinolones 15a-c.

Synthesis of indoles and quinolones by sequential Wittig and Heck reactions

Latham, Elliot J.,Stanforth, Stephen P.

, p. 2253 - 2254 (2007/10/03)

N-Trifluoroacetylanilines 6 and 7 undergo a Wittig reaction with phosphorane 2 (R = Et) giving enamine derivatives 9 and 10 respectively which are precursors to indoles 4 and quinolones 5.

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