Advertisements
Advertisements
प्रश्न
_____________ reaction is used to synthesize straight alkyl substituted benzenes.
पर्याय
Etard
Rosenmund reduction
Stephen reaction
Wolf Kishner reduction
Advertisements
उत्तर
Wolf Kishner reduction reaction is used to synthesize straight alkyl substituted benzenes.
APPEARS IN
संबंधित प्रश्न
Write reaction showing aldol condensation of cyclohexanone.
Benzaldehyde gives all tests positive EXCEPT ____________.
Which of following is not a property of red phosphorus?
Compounds of general formula, are called ____________.
\[\begin{array}{cc} \phantom{...}\ce{R}\phantom{....}\ce{OR''}\phantom{}\\ \phantom{}\backslash\phantom{..}/\\ \ce{C}\\ \phantom{}/\phantom{..}\backslash\\ \phantom{...}\ce{R'}\phantom{...}\ce{OR''}\phantom{} \end{array}\]
Which of the following represents the structure of isopropyl methyl ketone?
Acetone on Clemmensen reduction gives ____________.
Compounds of general formula, are called ____________.
\[\begin{array}{cc} \phantom{...}\ce{R}\phantom{....}\ce{OR'}\phantom{}\\ \phantom{}\backslash\phantom{..}/\\ \ce{C}\\ \phantom{}/\phantom{..}\backslash\\ \phantom{...}\ce{H}\phantom{....}\ce{OR'}\phantom{} \end{array}\]
The number of α-H atoms in butanal is ____________.
The first oxidation product of secondary alcohols is ____________.
Which of the following carbonyl compounds does NOT undergo aldol condensation?
The formation of cyanohydrin from acetone is an example of ____________.
Which of the following represents the correct order of acidity in the given compounds.
\[\ce{Benzoic acid ->[i) NH3][ii) \Delta] A ->[NaOBr] B ->[NaNO2/HCl] C}\] ‘C’ is:
Assertion: p-N, N-dimethyl amino benzaldehyde undergoes benzoin condensation
Reason: The aldehydic (−CHO) group is meta directing.
Phenyl methanal is reacted with concentrated NaOH to give two products X and Y. X reacts with metallic sodium to liberate hydrogen X and Y are ____________.
In which of the following reactions new carbon-carbon bond is not formed?
Identify A, B, C and D.
\[\ce{ethanoic acid ->[SOCl2] A ->[Pd/BaSO4] B ->[NaOH] C ->[][\Delta] D}\]
What is the action of HCN on propanone?
What is the action of HCN on 2, 4-dichlorobenzaldehyde?
How is the following conversion effected phenyl methanal into benzoic acid?
Complete the following reaction.
\[\begin{array}{cc}
\ce{CH3 - CH2 - CH2 - C - CH3 ->[HO - CH2 - CH2 - CH2 - OH][dry HCl] ?}\\
||\phantom{.........}\\
\ce{O}\phantom{.........}
\end{array}\]
How will you prepare malachite green from benzaldehyde?
The reagent used in Wolf - Kishner reduction is ______.
Which one of the following substituents at para-position is most effective in stabilizing the phenoxide 
ion?
Write the structure of the major product of the aldol condensation of benzaldehyde with acetone.
What is the action of hydrogen cyanide on the following?
Acetone
Write the structure of the major product of the aldol condensation of benzaldehyde with acetone.
The products formed in the following reaction, A and B are:
