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  2. Acetanilide - Wikipedia

    en.wikipedia.org/wiki/Acetanilide

    Acetanilide can be produced by reacting acetic anhydride with aniline: [7]. C 6 H 5 NH 2 + (CH 3 CO) 2 O → C 6 H 5 NHCOCH 3 + CH 3 COOH. The preparation used to be a traditional experiment in introductory organic chemistry lab classes, [8] but it has now been widely replaced by the preparation of either paracetamol or aspirin, both of which teach the same practical techniques (especially ...

  3. 2-Nitroaniline - Wikipedia

    en.wikipedia.org/wiki/2-Nitroaniline

    Many other methods exist for the synthesis of this compound. Direct nitration of aniline is inefficient since anilinium is produced instead. Nitration of acetanilide gives only traces of 2-nitro isomer is obtained due to the great steric effect of the amide. Sulfonation is usually used to block the 4 position and increases the effectiveness to 56%.

  4. Nitration - Wikipedia

    en.wikipedia.org/wiki/Nitration

    The phrase ipso nitration was first used by Perrin and Skinner in 1971, in an investigation into chloroanisole nitration. [18] In one protocol, 4-chloro- n -butylbenzene is reacted with sodium nitrite in t -butanol in the presence of 0.5 mol% Pd 2 (dba) 3 , a biarylphosphine ligand and a phase-transfer catalyst to provide 4-nitro- n -butylbenzene.

  5. Electrophilic aromatic substitution - Wikipedia

    en.wikipedia.org/wiki/Electrophilic_aromatic...

    The overall reaction mechanism, denoted by the Hughes–Ingold mechanistic symbol S E Ar, [3] begins with the aromatic ring attacking the electrophile E + (2a). This step leads to the formation of a positively charged and delocalized cyclohexadienyl cation, also known as an arenium ion, Wheland intermediate, or arene σ-complex (2b).

  6. Nitroacetanilide - Wikipedia

    en.wikipedia.org/wiki/Nitroacetanilide

    4-Nitroacetanilide is a chemical compound which is a nitro derivative of acetanilide. There are two other isomers of nitroacetanilide, 2-nitroacetanilide and 3-nitroacetanilide. 4-Nitroacetanilide is used as in intermediate in the production of some dyes. [2]

  7. Oleum - Wikipedia

    en.wikipedia.org/wiki/Oleum

    Oleum is a harsh reagent, and is highly corrosive. One important use of oleum as a reagent is the secondary nitration of nitrobenzene. The first nitration can occur with nitric acid in sulfuric acid, but this deactivates the ring towards further electrophilic substitution. A stronger reagent, oleum, is needed to introduce the second nitro group ...

  8. AOL Mail

    mail.aol.com/?rp=webmail-std/en-us/basic

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. Category:Acetanilides - Wikipedia

    en.wikipedia.org/wiki/Category:Acetanilides

    Acetanilides are compounds based on acetanilide, or N-phenylacetamide. Pages in category "Acetanilides" The following 68 pages are in this category, out of 68 total. ...