The Iodination of Aromatic Compounds. IV. The Iodination of Aromatic Hydrocarbons and Nuclear-substituted Phenols

1950 ◽  
Vol 3 (4) ◽  
pp. 587
Author(s):  
L Jurd
Keyword(s):  
Hydrogen Peroxide ◽  
Salicylic Acid ◽  
Nitric Acid ◽  
Aromatic Hydrocarbons ◽  
Aromatic Compounds ◽  
Hydrobromic Acid ◽  
Acetic Acid Solution ◽  
Alcoholic Solution ◽  
Substituted Phenols ◽  
Benzene Homologues

Salicylic acid and p-nitrophenol are almost quantitatively diiodinated when treated in alcoholic solution with iodine, hydrogen peroxide, and sulphuric, nitric, hydrochloric, or phosphoric acid. In glacial acetic acid solution salicylic acid gives good yields of the diiodo compound only in the presence of hydrochloric acid. No appreciable iodination occurs in the presence of sulphuric or nitric acid whilst 3,5-dibromosalicylic acid is formed with hydrobromic acid. Cinnamic acid reacts slowly with iodine, hydrogen peroxide, and sulphuric acid in methanol and ethanol solutions to give the corresponding α-iodo-β-alkoxy-β-phenylpropionic acids. Benzene homologues are readily iodinated in alcoholic solution in the presence of sulphuric or nitric acid although benzene does not react appreciably under similar conditions.

Fast and Efficient Nitration of Salicylic Acid and Some Other Aromatic Compounds over H3PO4/TiO2-ZrO2Using Nitric Acid

2010 ◽  
Vol 28 (3) ◽  
pp. 397-403 ◽  
Author(s):  
Roozbeh Javad Kalbasi ◽  
Ahmad Reza Massah ◽  
Farzad Zamani ◽  
Hamid Javaherian Naghash
Keyword(s):  
Salicylic Acid ◽  
Nitric Acid ◽  
Aromatic Compounds

ChemInform Abstract: Fast and Efficient Nitration of Salicylic Acid and Some Other Aromatic Compounds over H3PO4/TiO2-ZrO2 Using Nitric Acid.

ChemInform ◽  
2010 ◽  
Vol 41 (30) ◽  
pp. no-no
Author(s):  
Roozbeh Javad Kalbasi ◽  
Ahmad Reza Massah ◽  
Farzad Zamani ◽  
Hamid Javaherian Naghash
Keyword(s):  
Salicylic Acid ◽  
Nitric Acid ◽  
Aromatic Compounds

The Iodination of Aromatic Compounds. III. Halogenation of Aromatic Ethers in the Presence of Hydrogen Peroxide

1949 ◽  
Vol 2 (4) ◽  
pp. 595
Author(s):  
L Jurd
Keyword(s):  
Hydrogen Peroxide ◽  
Hydrochloric Acid ◽  
Sulphuric Acid ◽  
Aromatic Compounds ◽  
Potassium Bromide ◽  
Mineral Acid ◽  
Alcoholic Solution ◽  
Strong Mineral Acid ◽  
High Yields

Aromatic ethers are rapidly iodinated when treated in alcoholic solution with iodine and hydrogen peroxide in the presence of a strong mineral acid. High yields of the mono-iodo-derivatives are obtained with anisole and the 2-naphthyl ethers whilst both mono- and diiodination occur readily with the dimethoxybenzenes. In the absence of a mineral acid the reaction is very slow and only poor yield of the iodo-ethers result. A convenient process is described for the preparation of p-chloro- and p-bromo- anisole, and other chloro- and bromo-ethers, the ether being treated with hydrochloric acid and with potassium bromide and sulphuric acid respectively in the presence of hydrogen peroxide.

One-Step Oxidation of Benzene Producing Eight High Value Compounds Using Nitric Acid and Hydrogen Peroxide

2015 ◽  
Vol 19 (0) ◽  
pp. 55-58
Author(s):  
Zhen-xue Liu ◽  
◽  
Zhong-xue Gan ◽  
Jun-jie Gu ◽  
Qing-feng Song
Keyword(s):  
Hydrogen Peroxide ◽  
Nitric Acid ◽  
One Step ◽  
Oxidation Of Benzene

scholarly journals Determination of Polycyclic Aromatic Hydrocarbons and Nitrated Polycyclic Aromatic Compounds in Diesel-engine Exhaust Particles from Combustion Process of Biodiesel Fuel

2007 ◽  
Vol 56 (4) ◽  
pp. 241-248 ◽  
Author(s):  
Takayuki Kameda ◽  
Takeshi Nakao ◽  
Carmen Stavarache ◽  
Yasuaki Maeda ◽  
To Thi Hien ◽  
...  
Keyword(s):  
Aromatic Hydrocarbons ◽  
Aromatic Compounds ◽  
Combustion Process ◽  
Polycyclic Aromatic Compounds ◽  
Biodiesel Fuel ◽  
Engine Exhaust ◽  
Diesel Engine Exhaust ◽  
Polycyclic Aromatic ◽  
Exhaust Particles

scholarly journals Effect of WC/Ni–Cr additive on changes in the composition of an atmospheric residue in the course of cracking

2019 ◽  
Vol 17 (2) ◽  
pp. 499-508 ◽  
Author(s):  
Galina S. Pevneva ◽  
Natalya G. Voronetskaya ◽  
Nikita N. Sviridenko ◽  
Anatoly K. Golovko
Keyword(s):  
Molecular Weight ◽  
Tungsten Carbide ◽  
Aromatic Hydrocarbons ◽  
Aromatic Compounds ◽  
Low Molecular Weight ◽  
Nickel Chromium ◽  
Atmospheric Residue ◽  
Sulfur Containing ◽  
Catalytic Additive ◽  
Sulfur Containing Compounds

AbstractThe paper presents the results of investigation of changes in the composition of hydrocarbons and sulfur-containing compounds of an atmospheric residue in the course of cracking in the presence of a tungsten carbide–nickel–chromium (WC/Ni–Cr) catalytic additive and without it. The cracking is carried out in an autoclave at 500 °C for 30 min. The addition of the WC/Ni–Cr additive promotes the deepening of reactions of destruction not only of resins and asphaltenes, but also high molecular weight naphthene-aromatic compounds of the atmospheric residue. It is shown that the content of low molecular weight C9–C17 n-alkanes and C9–C10 alkylbenzenes rose sharply in the products of cracking with addition of WC/Ni–Cr in comparison with those produced without the additive. Alkyl- and naphthene-substituted aromatic hydrocarbons of benzene, naphthalene, phenanthrene series, polyarenes, benzo- and dibenzothiophenes are identified.

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