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प्रश्न
Write chemical equation for the following:
Gatterman - Koch formylation
Write the chemical reactions involved in:
Gatterman Koch formylation
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उत्तर
Benzene or substituted benzene is treated under high pressure with carbon-monoxide and hydrogen chloride in the presence of anhydrous aluminium chloride or cuprous chloride to give benzaldehyde or substituted benzaldehyde.
संबंधित प्रश्न
Write the structure of the product of the following reaction:
\[\ce{H3C - C ≡ C - H ->[Hg^{2+}, H2SO4]}\]
Complete the synthesis by giving missing starting material, reagent or product.
What is the action of Zn – Hg / conc. HCl on propanone?
Write only reactions for the preparation of benzophenone from benzonitrile.
What is the action of following reagents on ethanoic acid?
SOCl2/heat
What is the action of following reagents on ethanoic acid?
sodalime/heat
What is the action of following reagents on ethanoic acid?
P2O5/heat
Catalyst used in Rosenmund reduction is ____________.
Which of the following alcohols needs acidic KMnO4 to convert it into aldehyde or ketone?
Which of the following is a Stephen reaction?
Which of the following is called as mandelonitrile?
Identify 'A' in the following reaction:
\[\begin{array}{cc}
\phantom{...........}\ce{O}\\
\phantom{...........}||\\
\ce{2A + (C6H5CH2)2 Cd -> 2CH3 - C - CH2 - C6H5 + CdCl2}\end{array}\]
Which among the following compound on treatment with DIBAL-H yields dodecanal at 195 K?
Which among the following compounds is obtained when benzene is treated with CO and HCl in presence of catalyst anhydrous AlCl3 and Cu2Cl2 under high pressure?
Chromyl chloride converts methyl group to a chromium complex, which on acid hydrolysis gives corresponding aldehyde. This reaction is called ____________.
Given below are two statements labelled as Assertion (A) and Reason (R).
Assertion (A): SO2 is reducing while TeO2 is an oxidising agent.
Reason (R): Reducing property of dioxide decreases from SO2 to TeO2.
Select the most appropriate answer from the options given below:
Which of the following reaction is shown by alkynes?
How ketones are prepared from nitriles?
Two isomers 'A' and 'B' with molecular formula C4H8 give different products on oxidation with KMnO4 in acidic medium. Isomer 'A' on reaction with KMnO4/H+ results in the effervescence of gas and gives ketone. The compound 'A' is:
How are the following compound obtained by hydration of alkenes?
Isopropyl alcohol
How are the following compound obtained by hydration of alkenes?
tert-butyl alcohol
How acetone is prepared from nitriles using Grignard reagent?
Write the reaction of Ethanoyl chloride on diethylamine.
Which of the following on heating with aqueous KOH produces acetaldehyde.
Identify the reagent ‘R’ necessary to bring the following conversion.
