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प्रश्न
_____________ reaction is used to synthesize straight alkyl substituted benzenes.
विकल्प
Etard
Rosenmund reduction
Stephen reaction
Wolf Kishner reduction
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उत्तर
Wolf Kishner reduction reaction is used to synthesize straight alkyl substituted benzenes.
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संबंधित प्रश्न
The following compounds will give positive Fehling’s test.
Write another name of disproportionation reaction?
Explain haloform reaction with suitable example.
Aldol condensation between which of the following compounds followed by dehydration gives 4-Methylpent-3-en-2-one?
Benzaldehyde gives all tests positive EXCEPT ____________.
\[\begin{array}{cc} \phantom{...}\ce{R}\phantom{.................}\ce{R}\phantom{..}\ce{H}\phantom{................}\\ \phantom{...}\backslash\phantom{..................}\backslash/\phantom{..........}\phantom{.......}\\ \ce{C = O ->[H2NNH2][KOH/glycol] C + N2 + H2O}\\ \phantom{}/\phantom{............}\phantom{.......}/\phantom{}\backslash\phantom{...............}\\ \phantom{}\ce{R}\phantom{..................}\ce{R}\phantom{..}\ce{H}\phantom{...............} \end{array}\]
Reaction is called ____________.
Which of the following will give positive iodoform test?
The number of α-H atoms in butanal is ____________.
Which of the following reagents is used for the following conversion?
\[\ce{CH3 - CH = CH - CHO -> CH3 - CH = CH - CH2OH}\]
Reaction of acetone with one of the following reagents involves nucleophilic addition followed by elimination of water. The reagent is:
Carboxylic acids have higher boiling points than aldehydes, ketones and even alcohols of comparable molecular mass. It is due to their ____________.
What is the action of HCN on 2, 4-dichlorobenzaldehyde?
How is the following conversion effected phenyl methanal into benzoic acid?
How is the following conversion effected phenyl methanal into benzoin?
How will you prepare ethyl acetate from methyl acetate?
How will you prepare acetamide from methyl cyanide?
How will you prepare ethane from sodium acetate?
How will you prepare malachite green from benzaldehyde?
How will you prepare cinnamic acid from benzaldehyde?
Primary nitroalkanes are obtained in good yield by oxidising aldoximes with the help of ______.
Which one of the following reactions will not result in the formation of a carbon-carbon bond?
Which of the following compound will give positive iodoform test?
In the above reaction, product (B) is:
Which of the following compounds does not undergo a haloform reaction?
Aldehydes are readily oxidised to yield carboxylic acids but ketones are inert to oxidation. Which is the most likely explanation regarding this difference in reactivity?
Write the structure of the major product of the aldol condensation of benzaldehyde with acetone.
A carbonyl compound A having molecular formula C5H10O forms crystalline precipitate with sodium bisulphate and gives positive iodoform test. A does not reduce Fehling solution. Identify A.
Write the structure of the products obtained from the following ketones by action of hydrazine in presence of strong base KOH.
Write the structure of the major product of the aldol condensation of benzaldehyde with acetone.
