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Byju's Answer

Standard XII

Chemistry

Hydroboration Oxidation

How will you ...

Question

How will you bring about the following conversions?
(i) Propanone to propane
(ii) Benzoyl chloride to benzaldehyde
(iii) Ethanal to $b u t - 2 - e n a l$

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Solution

i.
ii.
iii. $C H_{3} C H O + d i l . N a O H \to C H_{3} C H (O H) - C H_{2} C H O h e a t i n g - --- \to C H 3 C H = C H C H O$
Ethanal But-2-enal

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How will you bring about the following conversions?

(i) Ethanol to but-1-yne

(ii) Ethane to bromoethene

(iii) Propene to 1-nitropropane

(iv) Toluene to benzyl alcohol

(v) Propene to propyne

(vi) Ethanol to ethyl fluoride

(vii) Bromomethane to propanone

(viii) But-1-ene to but-2-ene

(ix) 1-Chlorobutane to n-octane

(x) Benzene to biphenyl.

How will you bring about the following conversions ?

(i) Ethanol to but - 1 - yne

(ii) Ethane to bromoethane

(iii) Propene to 1 - nitropropane

(iv) Toluene to benzyl alcohol

(v) Propene to propyne

(vi) Ethanol to ethyl fluoride

(vii) Bromomethane to propanone

(viii) But-1-ene to but-2-ene

(ix) l - chlorobutane to n- octane

(x) Benzene to biphenyl

Q. How will you bring out the following conversion :
(i) Acetyl chloride to Acetaldehyde
(ii) Methanal to Ethanal.

Q. How will you convert ethanal into the following compounds?
(i) Butane-1,3-diol (ii) But-2-enal (iii) But-2-enoic acid

How will you bring about the following conversions in not more than two steps?

(i) Propanone to Propene

(ii) Benzoic acid to Benzaldehyde

(iii) Ethanol to 3-Hydroxybutanal

(iv) Benzene to m-Nitroacetophenone

(v) Benzaldehyde to Benzophenone

(vi) Bromobenzene to 1-Phenylethanol

(vii) Benzaldehyde to 3-Phenylpropan-1-ol

(viii) Benazaldehyde to α-Hydroxyphenylacetic acid

(ix) Benzoic acid to m- Nitrobenzyl alcohol

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How will you bring about the following conversions?(i) Propanone to propane(ii) Benzoyl chloride to benzaldehyde(iii) Ethanal to but−2−enal

i. ii. iii. CH3CHO+dil.NaOH→CH3CH(OH)−CH2CHOheating−−−−→CH3CH=CHCHO Ethanal But-2-enal

How will you bring about the following conversions?
(i) Propanone to propane
(ii) Benzoyl chloride to benzaldehyde
(iii) Ethanal to $b u t - 2 - e n a l$

i.
ii.
iii. $C H_{3} C H O + d i l . N a O H \to C H_{3} C H (O H) - C H_{2} C H O h e a t i n g - --- \to C H 3 C H = C H C H O$
Ethanal But-2-enal