Polymers and Life - Amines and Amino Acids Flashcards
what is the structure of a primary amine?
what is the structure of a secondary amine?
what is the structure of a tertiary amine?
what is the functional group for amines?
at least one C-N bond, other bonds on the N are either to a H or other alkyl groups
what is the solubility of amines in water?
small amines are soluble in water, large amines are not
why are small amines soluble in water and large amines insoluble?
there is a lone pair on an electronegative atom with 2H also attached to it
the lone pair and H atoms can hydrogen bond with water
in small amines, the bonds are sufficient to solvate the molecule
in large amines, molecules would have to break many H bonds already present while only forming 3 H bonds so cannot solvate
what is the functional group of amides?
how are primary amines named?
either amino as a prefix - used with <1 group
or amine as a suffix - used with 1 group
are amines acidic or basic?
basic
how are amides formed?
when an amine and carboxylic acid react
why don’t amines and amides act similarly?
because the carbonyl group on an amide makes it act more like an ester than an amine
what is the structure of a primary amide?
what is the structure of a secondary amide?
what is the structure of a tertiary amide?
what are primary amides made from?
ammonia + acyl chloride
why are primary amides made from acyl chlorides and not carboxylic acids?
carboxylic acids do not react easily with ammonia but acyl chlorides do, and they produce the same product
what are secondary amides derived from?
primary amine + carboxylic acid
what type of reaction produces amides?
condensation reaction
what is the by-product of the reaction to produce amides?
hydrogen chloride
what is the equation for the hydrolysis of primary amides in acidic conditions?
RCONH2 -> RCOOH + NH4