Nucleophilic Addition Elimination Reaction : acyl nucleophilic substitution on carboxylic acids and dervatives(SNAE/SNAC)-3) carboxylic acid,4)anhydrides(Symmetrical and unsymmetrical),5)benzene sulphonyl chloride,6) cyanides and isocyanides,7) amides

Nucleophilic Addition Elimination Reaction : carboxylic acids and derivatives,SNAC or SNAE examples on 1) acis Halides,2) Esters,3) cyclic esters

Nucleophilic substitution at acyl carbon of a carboxylic acid derivative generally proceeds by.

Reaction Mechanism : nucleophilic substitution,examples on alcohol,1)lucas reagent,2)socl2,3)pcl3,4)pcl5,5)hi,6)nabr/h2so4,7)tscl

Aldehyde, ketone, carboxylic acid derivatives contain C= O group. Aldehyde and ketones give nucleophilic addition reactions where as acid and acid derivatives give nucleophilic addition followed by elimination reactions. Nucleophilic addition reactions followed by elimination of acid dervatives is Known sacyl substitution reaction. This substitution reaction takes place by formation of tetrahedral intermediate. For the given reaction which of these is correct ?

Reaction Mechanism : grignard reagent, (nucleophilic addition elimination (SNae,SNac), reaction with co2,so3,o2,)

Reaction OF Alcohol with Pcl3,Pcl5 ||Reaction OF Pcl5 with Ether, Ketone, Carboxylic Acid Ester, Anhydride and Amide

Aldehydes and ketones undergo nucleophilic addition reactions. With weak nucleophiles such as ammonia and its derivatives, (H_2 N-Z) , aldehydes and ketones react in weakly acidic medium to form compounds containing carbonnitrogen double bond with the elimination of water to form . Aldehydes can be easily oxidised to carboxylic acid on treatment with common oxidising agents like KMnO_4 K_2 Cr_2 O_7 , HNO_3 , etc. The carboxylic acid formed contain the same number of carbon atoms as the aldehydes. However ketones under drastic conditions with powerful oxidising agents undergo cleavage of C-C bond giving mixture of carboxylic acids having lesser number of C atoms than the original ketone. Arrange the following in the decreasing order of their reactivity towards HCN: HCHo , CH_3 COCH_3 , CH_3 CHO ,C_6 H_5 CHO

Aldehydes and ketones undergo nucleophilic addition reactions. With weak nucleophiles such as ammonia and its derivatives, (H_2 N-Z) , aldehydes and ketones react in weakly acidic medium to form compounds containing carbonnitrogen double bond with the elimination of water to form . Aldehydes can be easily oxidised to carboxylic acid on treatment with common oxidising agents like KMnO_4 K_2 Cr_2 O_7 , HNO_3 , etc. The carboxylic acid formed contain the same number of carbon atoms as the aldehydes. However ketones under drastic conditions with powerful oxidising agents undergo cleavage of C-C bond giving mixture of carboxylic acids having lesser number of C atoms than the original ketone. Write the reaction of acetone with semicarbazide.