CHEM 233 Lecture Notes - Lecture 7: Oxonium Ion, Curtiss R3C

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silverwildebeest198

7 Dec 2015

School

University of Illinois

Department

Chemistry

Course

CHEM 233

Professor

Dr.Mcquade

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Document Summary

The purpose of this lab is first prepare 2-chloro-2methylbutane from an sn1 reaction of. Separately; 1-bromobutane is prepared from sn2 reaction of 1-butanol and sodium bromide in sulfuric acid. Using the simple distillation methods the desired products are isolated from the byproduct and water. The desired compounds of the isolated products are confirmed using the nal and agno3 classification tests. To evaluate the efficiency of these synthesis reactions, the percentage yields were calculated. The substances that were worked with were sulfuric acid, which is dangerous and corrosive causing severe burns. Also, concentrated acids and water would produce heat so heat would be dispersed into the water. Sodium hydroxide was also used which is highly caustic. So, gloves and goggles had been worn at all times. Figure 1: (left) sn2 reaction of nucleophilic substitution of 1-butonal with nabr for product. 1-bromobutane. (right) sn1 reaction of nucleophilic substitution of 2-methyl-2butonal with.

Related Questions

Draw a separation scheme for isolating 4-methlycyclochexene from the reaction mixture.

(a) PROPAN-1-OL
1-Propanol is a primary alcohol with the formula CH3CH2CH2OH (sometimes represented as PrOH or n-PrOH). This colourless liquid is also known as propan-1-ol, 1-propyl alcohol, n-propyl alcohol, and n-propanol. It is an isomer of 2-propanol (propan-2-ol, isopropyl alcohol, isopropanol). It is formed naturally in small amounts during many fermentation processes and used as a solvent in the pharmaceutical industry mainly for resins and cellulose esters.
Chemical properties
1-Propanol shows the normal reactions of a primary alcohol. Thus, it can be converted to alkyl halides; for example, red phosphorus and iodine produce n-propyl iodide in 80% yield, while PCl3 with catalytic ZnCl2 gives n-propyl chloride. Reaction with acetic acid in the presence of an H2SO4 catalyst under Fischer esterification conditions gives propyl acetate while refluxing propanol overnight with formic acid alone can produce propyl format in 65% yield. Oxidation of 1-propanol with Na2Cr2O7 and H2SO4 gives only a 36% yield of propionaldehyde, and therefore for this type of reaction higher yielding methods using PCC or the Swern oxidation are recommended. Oxidation with chromic acid yields propionic acid.

PROPAN-2-OL
Isopropyl alcohol (IUPAC name propan-2-ol; commonly called isopropanol) is a compound with the chemical formula C3H8O. It is a colourless, flammable chemical compound with a strong odour. As an isopropyl group linked to a hydroxyl group, it is the simplest example of a secondary alcohol, where the alcohol carbon atom is attached to two other carbon atoms. It is a structural isomer of 1-propanol. It is manufactured for a wide variety of industrial and household uses and is a common ingredient in chemicals such as antiseptics, disinfectants, and detergents.
Isopropyl alcohol, synonymous with 2-propanol, sec-propyl alcohol, IPA, isopropanol, or rubbing alcohol is miscible in water, ethanol, ether, and chloroform. It will dissolve ethyl cellulose, polyvinyl butyral, many oils, alkaloids, gums and natural resins. Unlike ethanol or methanol, isopropyl alcohol is not miscible with salt solutions and can be separated from aqueous solutions by adding a salt such as sodium chloride. The process is colloquially called salting out and causes concentrated isopropyl alcohol to separate into a distinct layer.
Isopropyl alcohol forms an azeotrope with water, which gives a boiling point of 80.37 Â°C (176.67 Â°F) and a composition of 87.7 wt% (91 vol%) isopropyl alcohol. Water-isopropyl alcohol mixtures have depressed melting points. [8] It has a slightly bitter taste, and is not safe to drink

Please rewrite about this alcohol in details.

Could you please answer these questions