Organic chemistry equations - help please!?

Question

Hi peeps,

Anyone know the chemical equations for the following:

1) Reaction of butanal with Tollen's reagent

2) Reaction bewteen propanone and Brady's reagent.

Any help with the above would be very much appreciated as I am totally stuck! (I do not know the molecular formula for the two reagents)

Thanks.

Answer 1

Tollens' Reagent is a solution of [Ag(NH3)2]+ ions.
It oxidises butanal to the butanoate anion (it's in alkaline solution), and is itself reduced to silver metal (and free ammonia molecules).

Brady's Reagent is 2,4-dinitrophenylhydrazine, which reacts with propanone to form propanone 2,4-dinitrophenylhydrazone.

I'm sure that if you now google the names of the chemicals that I have given you, you will be able to work out the equations.

Answer 2

Tollen's reagent
diamminesilver(I) cation, [Ag(NH3)2]+
Brady's reagent
2,4-Dinitrophenylhydrazine
C6H3(NO2)2NHNH2
for Brady's reagent reaction with ethanol :http://everything2.com/index.pl?node_id=1289088