Suggest a route to prepare ethyl hydrogen sulphate -3-2-2- starting from ethanol -2 -5 -

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Standard XII

Chemistry

Preparation of Alcohols from Grignard Reagents

Suggest a rou...

Question

Suggest a route to prepare ethyl hydrogen sulphate $(C H_{3} - C H_{2} - O S O_{2} — O H)$ starting from ethanol $(C_{2} H_{5} O H)$ .

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Solution

Mechanism

It is a two-step process

Step-1 Protonation of alcohol

Step-2 attack of Nucleophile

Conditions for Temperature-

The temperature should not be allowed to rise above $383 K$ , otherwise, diethyl ether will be produced at $413 K$ or ethene at $433 K$ .

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Similar questions

Describe giving all practical details, how would you prepare :

(a) copper sulphate crystals from a mixture of charcoal and black copper oxide,

(b) zinc sulphate crystals from zinc dust (powdered zinc and zinc oxide),

(d) Calcium sulphate from calcium carbonate.

A, B, C and D summarize the properties of sulphuric acid depending on whether it is dilute or concentrated. Choose the property (A, B, C or D), depending on which is relevant to each of the preparations (i) to (iii):
A. Dilute acid (typical acid properties)
B. Non-volatile acid
C. Oxidizing agent
D. Dehydrating agent
(i) Preparation of hydrogen chloride.
(ii) Preparation of ethene from ethanol.
(iii) Preparation of copper sulphate from copper oxide.

State the method of preparation of ethanol :
(a) by hydrolysis of ethene,
(b) by hydrolysis of ethyl bromide.

Q. Give the equation for the preparation of each of the following salts from the starting material given.
(i) Copper sulphate from copper (II) oxide,
(ii) Iron (III) chloride from Iron.
(iii) Potassium sulphate from potassium hydroxide solution.
(iv) Lead chloride from lead carbonate (two equations).

Q. Suggest a route to prepare ethyl hydrogen sulphate

(C H_{3} - C H_{2} - O S O_{2} - O H)

starting from ethanol

(C_{2} H_{5} O H)

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Suggest a route to prepare ethyl hydrogen sulphate (CH3–CH2–OSO2—OH) starting from ethanol (C2H5OH).

Mechanism It is a two-step process Step-1 Protonation of alcohol Step-2 attack of Nucleophile Conditions for Temperature- The temperature should not be allowed to rise above 383 K, otherwise, diethyl ether will be produced at 413 K or ethene at 433 K.

Suggest a route to prepare ethyl hydrogen sulphate $(C H_{3} - C H_{2} - O S O_{2} — O H)$ starting from ethanol $(C_{2} H_{5} O H)$ .

Mechanism

It is a two-step process

Step-1 Protonation of alcohol

Step-2 attack of Nucleophile

Conditions for Temperature-

The temperature should not be allowed to rise above $383 K$ , otherwise, diethyl ether will be produced at $413 K$ or ethene at $433 K$ .