In which of the following preparations of ether, the configuration about chiral centre is not retained?
Which ofthe following compounds is not chiral?
1-Chloropentane
2-Chloropentane
1-Chloro-2-methyl pentane
3-Chloro-2-methyl pentane
Decreasing order of stability of ions is.
(i) CH3 - H - CH3
(ii) CH3 - H - OCH3
(iii) CH3 - H - COCH3
(i) > (ii) > (iii)
(ii) > (i) > (iii)
(ii) > (iii) > (i)
(iii) > (i) > (ii)
The function of AlCl3, in Friedel-Craft's reaction is to
absorb HCl
absorb water
produce nucleophile
produce electrophile.
Consider the reaction,
The correct explanation is
the product is formed due to nucleophilic substitution
the product is formed according to Saytzeff's rule
conjugated double bond product is formed, due to higher stability because of resonance stabilization
(CH3)3CO- is a better leaving group
Williamson's synthesis involves :
SN1 mechanism
nucleophilic addition
SN2 mechanism
SE mechanism