What is a Bromoacetanilide?
What is a Bromoacetanilide?
Description. 4′-Bromoacetanilide is a Pale yellow crystals or powdery crystals. Melting point 168℃, relative density 1.717. Soluble in benzene, chloroform, ethyl acetate, slightly soluble in alcohol, slightly soluble in hot water, insoluble in cold water.
How is para Bromoacetanilide prepared?
PROCEDURE. 10 g of acetanilide is dissolved in 45 ml glacial acetic acid in a 250 ml conical flask and cooled to below 5 degrees. Then 4.2 ml of bromine is added drop wise in to 25 ml cold acetic acid with constant stirring and the bromine solution is transferred to a burette/separating funnel supported over the flask.
What is Bromoacetanilide used for?
4′-Bromoacetanilide is used as an internal standard for phenylurea and the respective metabolic products in oysters. It has also been used as a reagent in the production of a new ligand to form a coordination compex between gadolinium(III) and T=titanium(IV) oxide.
What is the density of Bromoacetanilide?
Predicted data is generated using the ACD/Labs Percepta Platform – PhysChem Module
Density: | 1.5±0.1 g/cm3 |
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Vapour Pressure: | 0.0±0.8 mmHg at 25°C |
Enthalpy of Vaporization: | 59.8±3.0 kJ/mol |
Flash Point: | 167.6±23.2 °C |
Index of Refraction: | 1.612 |
How do you make para bromoaniline?
A preparation method for para-bromoaniline take aniline as raw material, first under zinc powder effect, generates Acetanilide with acetic acid generation acetylization reaction, then generates asepsin with bromine reaction, obtains para-bromoaniline finally by hydrolysis, neutralization reaction.
Why product is major in preparation of p-Bromoacetanilide?
because it is a bulkier group the substitution at the ortho position scarcely occurs, yielding the para mono-substituted compound as the major product (Scheme 5.1. 8.3). This compound, p-bromoacetanilide, already has the substitution pattern of the benzene ring that is desired for the final product.
What is the melting point of 4 Bromoacetanilide?
165-169 °C (lit.)
What is the boiling point of P Bromoacetanilide?
mp. 165-169 °C (lit.)
Which of the following methods can be used to prepare p-bromoaniline as major product?
direct bromination of aniline in presence of Lewis acid.
Why glacial acetic acid is used in preparation of p Bromoacetanilide?
Answer and Explanation: Glacial acetic acid is a polar protic solvent that can dissolve acetanilide.
How do you convert aniline to bromoaniline?
Answer : As aniline is a very activating group, it is first reacted with anhydride to make it less activating , which on reaction with bromine in acetic acid , followed by acid hydrolysis gives p-bromoaniline.