Ask a question from expert

Ask now

Organic Chemistry Solved Assignment

The experiment focuses on the selective reduction of m-nitroacetophenone using tin and sodium borohydride as reagents.

9 Pages1125 Words378 Views
   

Added on  2021-04-17

Organic Chemistry Solved Assignment

The experiment focuses on the selective reduction of m-nitroacetophenone using tin and sodium borohydride as reagents.

   Added on 2021-04-17

BookmarkShareRelated Documents
Running head: ORGANIC CHEMISTRYORGANIC CHEMISTRY[Author Name(s), First M. Last, Omit Titles and Degrees][Institutional Affiliation(s)]
Organic Chemistry Solved Assignment_1
2ORGANIC CHEMISTRYTitle: Selective Reductions of m-Nitroacetophenone with Tin and Sodium BorohydrideObjectivesTo determine the reduction of m-nitroacetophenone with tin To determine the reduction of m-nitroacetophenone with sodium borohydrideIntroductionReduction and oxidation is defined in organic chemistry as a gain in hydrogen atoms and oxygenatoms respectively. For this experiment, tin (Lewis acid) and sodium borohydride (NaBH4) are used to reduce m-nitroacetophenone. Lewis acid refers to a metal that is able to donate electrons when reducing organic compounds. In the first part of this experiment, tin and hydrochloric acid are used as the reducing agents to reduce m-nitroacetophenone[ CITATION Pau132 \l 1033 ]. The metal, tin, donates its electrons to the organic compound hence the metal becomes oxidized to forming an ion with the formula Sn2+. By the end of the first part of the experiment, the resulting solution is found to be basic and tin changes to tin oxide, SnO. The process of reduction in the reduction reaction in which tin is the reducing agent involves transfer of three electrons. The mechanism of the reduction is as shown below,The equation for the reaction is as shown belowC (CH3) OC6H5NO2+ 3Sn+7HCl C (CH3) OC6H5NH3+7Cl-+3Sn2++2H2O
Organic Chemistry Solved Assignment_2
3ORGANIC CHEMISTRYSodium borohydride is preferred for use as a reducing agent in comparison with other reducing agents due to its less reactive nature. It is usable in the reduction of ketones and aldehydes while on the other hand aluminium hydride can be used in the reduction of carboxylic acid and esters among other organic compounds. In the subsequent part of the experiment, sodium borohydride is being used to reduce m-nitroacetophenone. The functional group of ketone is reduced to an alcohol branch through the transfer of the hydride to the m-nitroacetophenone[ CITATION Phi17 \l 1033 ]. The mechanism of the reaction of the reduction of m-nitroacetophenone by sodium borohydride is as shown below,Sodium borohydride takes the form of borate ester after the reduction reaction in which the sodium borohydride is oxidized[ CITATION WLF13 \l 1033 ]. The addition of an acidic solution to the reaction at the end of the reaction would change the borate ester into a boric acid, B(OH)3and a salt as shown in the reaction mechanism shown below,MaterialsPart 1m-nitroacetophenone
Organic Chemistry Solved Assignment_3

End of preview

Want to access all the pages? Upload your documents or become a member.

Related Documents
Lab Report on Organic Chemistry
|8
|1184
|265

Reduction of Camphor Using Sodium Hydroxide
|7
|751
|419

Fuel: Organic Fuels and Biofuels
|8
|1341
|360