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Introduction

Which sequenc...

Question

Which sequence of steps describes the best synthesis of $2$ -phenylpropene?

Benzene

+

2

-chloropropene,

A l C l_{3}

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1

. Benzaldehyde

(C_{6} H_{5} C H = O) + C H_{3} C H_{2} M g B r

, diethyl ether

2

H_{3} O^{+}

3

H_{2} S O_{4}

, heat

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1

. Bromobenzene

+

Mg, diethyl ether

2

. Propanal

(C H_{3} C H_{2} C H = O)

3

H_{3} O^{+}

4

H_{2} S O_{4}

, heat

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1

. Bromobenzene

+

Mg, diethyl ether

2

. Acetone

[(C H_{3})_{2} C = O]

3

H_{3} O^{+}

4

H_{2} S O_{4}

, heat

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Solution

The correct option is A Benzene $+$ $2$ -chloropropene, $A l C l_{3}$
The catalyst used is anhydrous $A l C l_{3}$ and the product is $2 -$ phenyl propane.

Suggest Corrections

Similar questions

Q. Diethyl ether when heated to

350^{0} C

with

A l_{2} O_{3}

forms :

Which of the following sequence converts benzaldehyde into phenylacetaldehyde?

1: $P B r_{3}$
2: Mg in THF
3: $N a B H_{4} f o l l o w e d b y H_{3} O^{+}$
4: $H C H O f o l l o w e d b y H_{3} O^{+}$
5: PCC

STATEMENT-1 : Diethyl ether when boiled with water gives ethyl alcohol.
STATEMENT-2 : Diethyl ether is less dense than water.

Q. Describe the laboratory method for preparation of diethyl ether and write the reaction with

H_{2} O

and cold

H I

Q. Draw the structural formula for each of the following:

1.

2, 3

- dimethyl butane

2.

Diethyl ether

3.

Propanoic acid.

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Which sequence of steps describes the best synthesis of 2-phenylpropene?

The correct option is A Benzene + 2-chloropropene, AlCl3The catalyst used is anhydrous AlCl3 and the product is 2− phenyl propane.

Which sequence of steps describes the best synthesis of $2$ -phenylpropene?

The correct option is A Benzene $+$ $2$ -chloropropene, $A l C l_{3}$
The catalyst used is anhydrous $A l C l_{3}$ and the product is $2 -$ phenyl propane.