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प्रश्न
Write chemical equation for the following:
Gatterman - Koch formylation
Write the chemical reactions involved in:
Gatterman Koch formylation
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 structures of A and B in the following reactions:
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.
Complete the synthesis by giving missing starting material, reagent or product.
Write a note on ‘aldol condensation’.
What is the action of Zn – Hg / conc. HCl on propanone?
Write only reactions for the preparation of benzophenone from benzonitrile.
Write the IUPAC name of the follow
\[\begin{array}\ce{\phantom{--..}O}\\\ce{\phantom{--..}||}\\ \ce{CH2=CH-C-CH3}\end{array}\]
Write chemical equation for the following :
Rosenmund reduction
Complete the following reaction:
\[\ce{(C6H5CH2)2Cd + 2CH3COCI}\]
Answer the following in one sentence.
Predict the product of the following reaction:
\[\ce{CH3 - CH2 - COOCH3->[i) AIH(i-Bu)_2][ii) H3O+]}\]?
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
In the formation of an aldol, α-carbon atom of one aldehyde molecule attaches to ____________ of another aldehyde molecule.
An acylchloride is hydrogenated over catalyst palladium on barium sulphate to form an aldehyde. This reaction is called as ______.
Which of the following is a Stephen reaction?
Which of the following is called as mandelonitrile?
Rosenmund reduction of ____________ yields benzaldehyde.
Identify the compound obtained by side chain chlorination of toluene and hydrolysed further.
Identify 'A' and 'B' respectively in following reaction.
\[\ce{Toluene ->[Cl2][hv] A ->[H2O][\Delta] B}\]
The product of the reaction between dimethylcadmium and acetyl chloride is ____________.
A reaction in which chromyl chloride in presence of CS2 converts methyl group of toluene to aldehydic group on acid hydrolysis is called _________.
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?
Which of the following compounds does NOT undergo Friedel-Crafts reaction?
What is the final product obtained when benzonitrile react with phenyl magnesium bromide in equimolar proportion?
Identify 'A' in the following reaction.
\[\ce{A ->[H2][Pd-BaSO4] C6H5CHO + HCl}\]
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:
How ketones are prepared from nitriles?
Give the reactions involved in the Etard's reaction.
Which reagent is used in Etard reaction?
Z is:
Ozonolysis of 2, 3 dimethyl but-2-ene, followed by decomposition by Zn dust and water gives ______.
What is the action of hydrogen cyanide on the following?
Benzaldehyde
Write Stephen reaction for the preparation of aldehyde.
How butanone is prepared from alcohol?
How are the following compound obtained by hydration of alkenes?
Ethyl alcohol
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
Write the name of the product formed when ethanoyl chloride is treated with dimethyl cadmium.
How acetone is prepared from nitriles using Grignard reagent?
Write the reaction of Ethanoyl chloride on diethylamine.
Write preparation of propanone by using ethanoyl chloride and dimethyl cadmium.
