File name: Reactions of amines pdf
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H-X (proton acid) NaOH. CH3NH2 (aq) + H+ (aq) CH3NH3 + (aq) (CH3CH2)2 NH (aq) + H+ (aq) (CH3CH2)2NH2 + (aq) (CH3CH2)3 N (aq) + H+ (aq) (CH3CH2)3NH+ (aq) Amines as bases react with acids to form ammonium salts Reactions of Amines. Reaction as a proton base (Section) H. N. H amine base. Aliphatic amine: An Reactions of Amines: A Review and a Preview. H. R N H. X. H ammonium salt (acidic) Mechanism: Required (protonation) Reverse Mechanism: Required (deprotonation) Amines are completely converted to ammonium salts by acids As weak bases, amines are good nucleophiles that can react with many of the electrophilic functional groups studied so far including aldenhydes, ketones, acid chlorides, and alkyl halides Reactions of Amines. All amines will react with acids to become ammonium salts. Reaction of ammonia and 1° amines with aldehyde and ketones to afford imines (w/ loss of H 2O) (Ch.) Reactions of Amines– The Hinsberg Test This test can distinguish betweeno,o ando amines An amine and benzenesulfonyl chloride are mixed with aqueous potassium hydroxide; the reaction is acidified in a second step – The results are different depending on the class of amine ammonia 1¼ amine 1¼ amine 2¼ amine R RO Ketone or aldehyde + H N RRNaBH 3CN cat.H+ R R H1 N 2R via R RN R 2¼ amine 3¼ amineVia Amides: (Section) R N RO RLiAlHR N RR• No mechanism required for the reduction Accessº, 2º, or 3º Amines. Structure & Classification. Amines are further divided into aliphatic, aromatic, and heterocyclic amines. R1 and R2 can be either H or C. Thus, you can produce Reactions with acids. Amines as nucleophiles. Reactions of AminesReaction as a proton base(Section and) RN H H N H R H H X H-X(protnacid) amine NaO base ammonium salt (acidic) Mechanism: Required Reactions of Amines (Review) Acylation () Amines react with acid chlorides and anhydrides to give amidesImine and Enamine Formations () Reaction with Reactions of amines All amines, whether soluble or insoluble in water, react quantitatively with strong acids to form water-soluble salts Heterocyclic Amines A heterocyclic Reactions with acids.
