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4674-21-9

4,6-dibromo-1,2,3,5-tetramethylbenzene is an organic compound characterized by its molecular formula C10H12Br2. 4,6-dibromo-1,2,3,5-tetramethylbenzene features a benzene ring with four methyl groups (CH3) attached to the 1, 2, 3, and 5 positions, and two bromine atoms (Br) substituting the hydrogen atoms at the 4 and 6 positions. The presence of bromine atoms and methyl groups significantly influences its chemical properties, such as reactivity, solubility, and stability. 4,6-dibromo-1,2,3,5-tetramethylbenzene is often used in various chemical reactions and synthesis processes, particularly in the production of dyes, pharmaceuticals, and other organic compounds. Due to its unique structure, 4,6-dibromo-1,2,3,5-tetramethylbenzene exhibits distinct physical and chemical properties, making it a valuable compound in the field of organic chemistry.

4674-21-9

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4674-21-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4674-21-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,6,7 and 4 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 4674-21:
(6*4)+(5*6)+(4*7)+(3*4)+(2*2)+(1*1)=99
99 % 10 = 9
So 4674-21-9 is a valid CAS Registry Number.

4674-21-9Relevant articles and documents

Selective Nuclear Halogenation of Polymethylbenzenes with Alumina-Supported Copper(II) Halides

Kodomari, Mitsuo,Satoh, Hiroaki,Yoshitomi, Suehiko

, p. 4149 - 4150 (2015/06/25)

The halogenation of polymethylbenzenes with alumina-supported copper(II) halides under heterogeneous conditions in nonpolar solvents gave nuclear-halogenated compounds selectively in high yields; no side-chain-halogenated compounds were formed.

Reactions of Alkyl-lithium Compounds with Aryl Halides

Huddle, Penelope A.,Perold, Guido W.

, p. 2617 - 2625 (2007/10/02)

Reation of methyl-lithium with tribromophenols and with other aryl polyhalides leads directly to bi- and tri-aryl products. para-Substituents (Y) of 2,6-dibromo-4-Y-phenols promote arylation of substrates by their own lithiation products as Y becomes more electron-withdrawing.An aryne epoxide is not an intermediate in these reactions. 2,4,6-Tribromo-Z-benzenes react to form coupling products when Z can co-ordinate to an introduced ortho-lithium atom or when Z can be directly lithiated.Dimeric aggregation of the organolithium intermediates occurs so as to favor coupling to halogenated substrates.Both polar (ionic) and free-radical pathways are involved.

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