Advertisements
Advertisements
प्रश्न
What is meant by the following term? Give an example of the reaction in the following case.
Oxime
Advertisements
उत्तर
Oximes are formed by reaction between aldehydes or ketones and hydroxylamine. The reaction is carried out in a mildly acidic condition.
\[\begin{array}{cc}
\ce{H3C}\phantom{...........................}\ce{H3C}\phantom{.....................}\\
\backslash\phantom{..............................}\backslash\phantom{................}\\
\ce{= O + \underset{Hydroxylarnine}{H2N-OH} ->[pH 3.5] \phantom{......}= NOH + H2O}\\
/\phantom{..............................}/\phantom{.................}\\
\ce{H}\phantom{............................}\ce{\underset{Oxime}{H}}\phantom{..................}
\end{array}\]
APPEARS IN
संबंधित प्रश्न
Arrange the following in the increasing order of their reactivity towards nucleophilic addition reaction:
C6H5COCH3, CH3-CHO, CH3COCH3
Write the products formed when CH3CHO reacts with the following reagents : H2N – OH
What is meant by the following term? Give an example of the reaction in the following case.
Cyanohydrin
Acetaldehyde, Acetone, Di-tert-butyl ketone, Methyl tert-butyl ketone (reactivity towards HCN)
How will you bring about the following conversion in not more than two steps?
Bromobenzene to 1-Phenylethanol
Give plausible explanation for the following:
Cyclohexanone forms cyanohydrin in good yield but 2, 2, 6 trimethylcyclohexanone does not.
What is the action of the following reagents on ethanoic acid?
1) `LiAlH_4"/"H_3O^+`
2) `PCl_3 , "heat"`
3) `P_2O_5, "heat"`
Write the main product formed when propanal reacts with the following reagents:
2 moles of 3 CH OH in presence of dry HCl
Which one of the following gives only one monochloro derivative?
Grignard reagent on reaction with acetone forms.
What is the action of sodium hypoiodite on acetone?
What happens when propanone is treated with CH3MgBr and then hydrolysed?
What happens when ethanal is treated with excess ethanol and acid?
The product "P" in the above reaction is:
Draw the structure of the following derivative.
The ethylene ketal of hexan-3-one
Draw structure of the following derivative:
Acetaldehydedimethylacetal
Draw structure of the following derivative.
The ethylene ketal of hexan-3-one
Which of the following will not be formed when calcium formate is distilled with calcium acetate?
The major product of the following reaction is:
