The major product of the following reaction i | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) The reaction involves the acid-catalyzed addition of an alcohol $(RCH_2OH)$ to the double bond of $3,4-dihydro-2H-pyran$. This reaction proceeds t

Vedclass · Accepted Answer

an acetal

Vedclass · Answer

(B) The reaction involves the acid-catalyzed addition of an alcohol $(RCH_2OH)$ to the double bond of $3,4-dihydro-2H-pyran$. This reaction proceeds through the formation of a resonance-stabilized oxocarbenium ion intermediate. The alcohol acts as a nucleophile and attacks the electrophilic carbon of the oxocarbenium ion. After the loss of a proton $(H^+)$,the final product formed is a tetrahydropyranyl ether. Since the product contains an alkoxy group attached to a carbon atom that is also bonded to another oxygen atom (part of the ring),it is classified as an acetal (specifically,a cyclic acetal).

The major product of the following reaction is

Similar Questions

When alkyl halide is heated with dry $Ag_2O$,it produces

When $CH_2 = CH - O - CH_2 - CH_3$ reacts with $1 \ mol$ of $HI$,one of the products formed is

Complete the following reaction:
$CH_3CH_2-O-C(CH_3)_2-CH_2CH_3 + \text{conc. } HI \to (?)$

Which of the following compounds resists the reaction with the nucleophilic hydroxide ion?

$'A'$ and $'B'$ formed in the following set of reactions are :

Vedclass Test Series

Exam Paper Generator

Online Exam Module