Y yalla22 Senior Member 7+ Year Member 15+ Year Member 20+ Year Member Joined Jan 6, 2003 Messages 911 Reaction score 0 Apr 27, 2004 #1 Members do not see this ad. what happens when you add a strong nucleophile (R2-N-H) under ACIDIC conditions to an aldehyde?
Members do not see this ad. what happens when you add a strong nucleophile (R2-N-H) under ACIDIC conditions to an aldehyde?
liverotcod Lieutenant Crunch 15+ Year Member Joined Nov 1, 2003 Messages 2,336 Reaction score 6 Apr 27, 2004 #2 Under acidic conditions, an amine is not a strong nucleophile, since it will be protonated and have no lone pair to go shopping for positive charge.
Under acidic conditions, an amine is not a strong nucleophile, since it will be protonated and have no lone pair to go shopping for positive charge.
liverotcod Lieutenant Crunch 15+ Year Member Joined Nov 1, 2003 Messages 2,336 Reaction score 6 Apr 27, 2004 #3 On the other hand, under less acidic conditions (pH 4.7), primary amines can react with carbonyls to form imines: H2N-Z + CHO -> RC=N-Z + H2O, which can then be reduced to the secondary amine.
On the other hand, under less acidic conditions (pH 4.7), primary amines can react with carbonyls to form imines: H2N-Z + CHO -> RC=N-Z + H2O, which can then be reduced to the secondary amine.