Table of Contents
What does sn and HCl do?
Tin reacts with hydrochloric acid to form Tin(IV) chloride. The H+ ions present react with the nitro group of the aromatic compound.
What happens when nitrobenzene is treated with SN HCl?
Answer: When nitrobenzene is reduced with a metal and acid (Sn/HCl, Zn/HCl etc.), aniline is obtained.
What reagent would we use to achieve the Chemoselective reduction of the nitro functionality in 3 ‘- Nitroacetophenone?
Bookmark this question. Show activity on this post. When 3′-nitroacetophenone is treated with sodium borohydride, only the carbonyl group is reduced (top); however, when reacted with tin and hydrochloric acid only the nitro group is reduced (bottom).
What happens when tin reacts with HCl?
The chloride formed when tin reacts with hydrochloric acid is tin (II) chloride, also known as tin dichloride. Tin reacts with dilute acids slower than many other metals and heat is often required to speed up the reaction. This property means tin can be used as a protective coating on other, more reactive, metals.
Does SN dissolve in HCl?
Characteristics: Metallic tin is soft and malleable. It slowly dissolves in dilute nonoxidizing acids or more readily in hot concentrated HCl.
What happens when nitrobenzene is reduced with zinc dust and aqueous ammonium chloride?
Solution: The reduction of nitrobenzene in the presence of Zn/Ammonium chloride gives N-phenyl hydroxylamine. Zinc dust and ammonium chloride convert nitrobenzene to the corresponding hydroxylamine.
What is the reduction of nitrobenzene?
It is generally accepted that the reduction of nitrobenzene to aniline consists of two main steps: first, nitrobenzene is reduced to phenylhydroxylamine (PHA) through a 4-electron exchange, with nitrosobenzene (NSB) as an intermediate. Then, a 2-electron reduction step converts PHA to aniline (Scheme 1) [16,17].
What does Wolff Kishner reduction do?
The Wolff-Kishner reduction is a reaction used to convert carbonyl functionalities into methylene groups in organic chemistry. De-protonation of the hydrazone by an alkoxide base to form a diimide anion by a concerted, solvent mediated protonation / de-protonation step is the rate deciding step of the reaction.
Does NaBH4 reduce nitro groups?
NaBH4 in the presence of catalytic amounts of SbF3 reduces a range of nitro compounds to their corresponding amines in high to excellent yields.
Does zinc react with HCl?
When zinc reacts with hydrochloric acid, the reaction bubbles vigorously as hydrogen gas is produced. The production of a gas is also an indication that a chemical reaction is occurring.
Does tin metal react with HCl?
“Tin is attacked only slowly by dilute acids such as hydrochloric acid (HCl) and sulfuric acid (H 2 SO 4 ). Dilute acids are mixtures that contain small amounts of acid dissolved in large amounts of water. This property also makes tin a good protective covering.
What is the product obtained in the following reaction nitrobenzene reacts with Zn NH4Cl?
Solution: The reduction of nitrobenzene in the presence of Zn/Ammonium chloride gives N-phenyl hydroxylamine.
What is the product obtained in the following reaction nitrobenzene react with Zn NH4Cl?
When nitrobenzene is reduced with a neutral reducing agent (Zn dust +NH4Cl,Al−Hg couple and water), pheylhydroxylamine is formed.
What happens when nitrobenzene is treated with Zn NaOH?
The bulky nitrobenzene is reduced using zinc, and sodium hydroxide. The reduction of NO2is in such a way that it gets converted to amines, the amines are attached with themselves and then benzene rings are attached. Hence, option C is correct as hydrazobenzene is formed by reduction of nitrobenzene with Zn and NaOH.