Organic 2 multiple synthesis - carbonyl group

[MmeSamIAm]

PCC only oxidizes primary alcohols to an aldehyde, not a carboxylic acid. so your last mechanism on the first sheet (bottom left) is wrong. to go from a primary alcohol to carboxylic acid you can use Jones reagents (H2CrO4, chromic acid)

Good video otherwise :)

[x62xy]

Great. Good for revision

and I just want to add one point

for diazonium salt, alkyl diazonium salt is not stable and in practically it won't be used for synthesis (will evolve N2 very easily)

[rucik666]

your aldehyde on the first sheet (bottom left) is actually a carboxylic acid as well. careful with the structures... it's also useful to know, that CH3OH is simply methanol, H2SO4 is just an acid (catalyst) and PCC=pyridinium chlorochromate (probably not the 'greenest' method around ;) )etc.etc. Hey ho, and a bottle of rum ^^