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Tetra chlor benzene

Chloranil.—We have spoken of the fact that halogan derivatives of quinones are formed as addition products, the di- and tetra-products being known. The halogens form other derivatives also in which the halogen is substituted for hydrogen of the benzene ring. These are true substituted quinones. The tetra-chlor quinone, C6CI4O2, is known as chlor-anil and is formed when aniline or phenol is treated with potassium chlorate and hydrochloric acid. [Pg.639]

Chlor Naphthalenes.—Another series of reactions which support the view just discussed, that in naphthalene there are present two nuclei either one of which is a benzene ring, is found in Laurent s work on the chlorine substitution products of naphthalene. When naphthalene is chlorinated it yields different chlor naphthalenes. Two of these are important in this place, viz., a tetra-chlor naphthalene, C10H4CI4 and a penta-chlor naphthalene, C10H3CI5. Now the first one must have all four chlorines linked to one nucleus because on oxidation it yields ortho-phthalic acid, as below. The penta-chlor compound must of necessity have at least one of the chlorines linked to the second nucleus as only four are possible of being linked to one nucleus. Now this compound on oxidation yields not mono-chlor phthalic acid but tetra-chlor phthalic acid. The reactions may be represented as follows ... [Pg.771]

In the first case one nucleus remains as a benzene ring in phthalic acid while in the second case it must be the other nucleus which remains as a benzene ring in tetra-chlor phthalic acid. The proof here then is exactly the same as in the case of nitro naphthalene and amino naphthalene, viz., that in naphthalene either nucleus is a benzene ring. [Pg.772]

Tetra-chlor-3-nitrobenzol Tetrachloronitrobenzene 1,2,4,5-Tetrachloro-3-nitrobenzene 2,3,5,6-Tetrachloro-1-nitro-benzene ... [Pg.600]

Substitution Products.— The halogen derivatives of naphthalene include both substitution and addition products. The tetra- and penta-chlor substituted naphthalenes have already been referred to as furnishing proof that in naphthalene there are present two benzene nucleii (p. 771). Other halogen substituted naphthalenes are known but none need be discussed in detail. ... [Pg.777]

Other nitro-derivatives of hydrocarhons and of phenols are used in explosive mixtures. Among the former are dinitro-benzene, chlor-dinitro-benzene, dinitro-toluene, di- or tri-nitro-den-vatives of mesitylene, pseudocumene, and xylene, dinitro-naphthalene. Trinitro-naphthalene and tetra-nitro-naphthalene have also been proposed. Of the nitro-phenols, perhaps the most important is tri-nitro-cresol, known as Cresilite in France, where it is added to Melinite. Other nitro-derivatives of the aromatic series will be mentioned in the section on detonators. [Pg.102]


See other pages where Tetra chlor benzene is mentioned: [Pg.505]    [Pg.505]   
See also in sourсe #XX -- [ Pg.505 ]




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