Advertisements
Advertisements
Question
Suggest a reagent for the following conversion.
Advertisements
Solution
Pyridinium chlorochromate (PCC), a complex of chromium trioxide with pyridine and HCl.
\[\ce{CH3 - CH = CH - CH2OH ->[PCC] CH3 - CH = CH - CHO}\]
APPEARS IN
RELATED QUESTIONS
Write the final product(s) in each of the following reactions:
Give reasons for the following:
o-nitrophenol is more acidic than o-methoxyphenol.
Give the equation of the following reaction:
Treating phenol with chloroform in the presence of aqueous NaOH.
Name the reagent used in the following reaction:
Oxidation of a primary alcohol to carboxylic acid.
The compound which reacts fastest with Lucas reagent at room temperature is:
In the reduction \[\ce{R - CHO + H2 -> RCH2OH}\] the catalyst used is:
Which of the following is not true in case of reaction with heated copper at 300°C?
Lucas test is done to differentiate between ____________.
Primary and secondary alcohols on the action of reduced copper give:
During dehydration of alcohols to alkenes by heating with cone. H2SO4 the initial step is ____________.
Mark the correct increasing order of reactivity of the following compounds with HBr/HCl.
| (a) |  |
| (b) |  |
| (c) |  |
Ethers can be prepared by Williamson synthesis in which an alkyl halide is reacted with sodium alkoxide. Di-tert-butyl ether can’t be prepared by this method. Explain.
Why is the C – O – H bond angle in alcohols slightly less than the tetrahedral angle whereas the C – O – C bond angle in ether is slightly greater?
Assertion: Bond angle in ethers is slightly less than the tetrahedral angle.
Reason: There is a repulsion between the two bulky (–R) groups.
Which of the following alcohols will not undergo oxidation?
Write the mechanism of acid dehydration of ethanol to yield ethene.
Write the mechanism of acid dehydration of ethanol to yield ethene.
Write the mechanism of acid-catalysed dehydration of ethanol to yield ethene.
Write the mechanism of acid-catalysed dehydration of ethanol to yield ethene
