Which one of the following will most readily be dehydrated in acidic medium?
CH3—CO—CH2—CH(OH)—CH3
CH3—CHOH—CH2—CH2—CH3
CH3—COCHOH—CH2—CH3
CH3—CO—CH2—CH2—CHOH—CH3
In the reaction, CHCl3 + 4OH- → HCOO- + 3Cl- + 2H2O the intermediate species formed is/ are
CCl2
CCl
Both (a) and (b)
None of the above
Consider the following compounds
Friedel-Crafts acylation can be used to obtain:
II, III, IV
I, II, IV
I, II, III
I, III, IV
B.
I, II, IV
Except (iii) all other show Friedel craft acylation. Structure (ii) does not show acylation due to presence of -NO2 and-COCH3 groups as both of these groups shown-M(-R) effect, which are deactivating groups.
Thus, do not show Friedel-Craft acylation.