Advertisements
Advertisements
प्रश्न
Show how is the following alcohol prepared by the reaction of a suitable Grignard reagent on methanal?
\[\begin{array}{cc}
\ce{CH3 - CH - CH2OH}\\
|\phantom{........}\\
\ce{CH3}\phantom{....}\\
\end{array}\]
Advertisements
उत्तर
\[\begin{array}{cc}
\phantom{...............}\ce{OMgBr}\\
\phantom{......}|\\
\ce{CH3 - CH - MgBr + HCHO -> CH3 - CH - CH2 ->[H2O] CH3 - CH - CH2OH + Mg(OH)Br}\\
|\phantom{....................................................}|\phantom{...................................}|\phantom{..............................}\\
\ce{CH3}\phantom{..............................................}\ce{CH3}\phantom{.............................}\ce{CH3}\phantom{...........................}\\
\end{array}\]
APPEARS IN
संबंधित प्रश्न
Show how will you synthesize 1-phenylethanol from a suitable alkene.
How is the following conversion carried out?
\[\ce{Methyl magnesium bromide -> 2-Methylpropan-2-ol}\]
Name the reagent used in the following reaction:
Dehydration of propan-2-ol to propene.
Show how you would synthesise the following alcohol from an appropriate alkene?

How will you convert: Phenol to 2, 4, 6 − trinitrophenol?
Name the reagents used in the following reactions:

Write the structures of A, B and C in the following reactions :
Write the structure of main compounds A and B in the following reaction:
\[\ce{CH3CH2CN->[CH3MgBRH/3O+]A->[LiAIH4]B}\]
Primary alcohols are prepared by the reduction of carboxylic acids. Though lithium aluminium hydride is a strong reducing agent, it is not used in the reaction. This is so because:
Acetone reacts with Grignard reagent to form:
How can propan-2-one be converted into tert- butyl alcohol?
Explain a process in which a biocatalyst is used in industrial preparation of a compound known to you.
Magnesium wire continues to burn in the atmosphere of CO2 because
The reagent used for dehydration of an alcohol is
When glycol is heated with dicorboxylic acid the product are
To synthesise 1.0 mole of 2-methylpropan-2-ol from Ethylethanoate ______ equivalents of CH3MgBr reagent will be required. (Integer value)
Given below are two statements:
Statement I: On heating with KHSO4, glycerol is dehydrated and acrolein is formed.
Statement II: Acrolein has a fruity odour and can be used to test glycerol's presence.
Choose the correct option.
Ceric aminonium nitrate and CHCl3/alc. KOH are used for the identification of functional groups present in ______ and ______ respectively.
How are the following conversions carried out?
\[\ce{Methyl magnesium bromide ->2-Methylpropan-2-ol}\]
How are the following conversions carried out?
\[\ce{Methyl magnesium bromide->2-Methylpropan-2-ol}\]
