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Benzene, 1,2,4-trichloro-3,5-difluoro- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

13656-67-2

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13656-67-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 13656-67-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,6,5 and 6 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 13656-67:
(7*1)+(6*3)+(5*6)+(4*5)+(3*6)+(2*6)+(1*7)=112
112 % 10 = 2
So 13656-67-2 is a valid CAS Registry Number.

13656-67-2Downstream Products

13656-67-2Relevant academic research and scientific papers

AROMATIC FLUORINE CHEMISTRY. PART 4. PREPARATION OF 2,6-DIFLUOROANILINE

Pews, R. G.,Gall, J. A.

, p. 307 - 316 (1991)

The preparation of 2,6-difluoroaniline from 1,3,5-trichlorobenzene is described. 1-Chloro-3,5-difluorobenzene prepared via KF exchange on 1,3,5-trichlorobenzene is dichlorinated and nitrated in a single reactor to a mixture of trichlorodifluoronitrobenzenes.The latter are reduced to ca. 4:1 mixture of 2,6-difluoroaniline and 2,4-difluoroaniline.

Methylhexamethylenetetramine fluoride dihydrate: A new fluorodenitration reagent

Clark, James H.,Nightingale, David J.

, p. 91 - 93 (2007/10/03)

Methylhexamethylenetetramine fluoride dihydrate has been prepared by conventional methods. It is moderately soluble in polar aprotic solvents, and shows good thermal stability, enabling it to be dried. The reagent is capable of converting activated nitroaromatics to the corresponding fluoroaromatics, with a high selectivity to monofluorodenitration being observed with some polysubstituted aromatics.

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