Chloroalkane -----> alkanamine

[fady_22]

it is right

other info: alumina catalyst and 400 degrees are needed

I thought that was for "Alkanol + NH3 --> H2O + Amine"

And that "Haloalkane + NH3 --> HX + Amine" needs no catalyst

I think I read somewhere that the haloalkane is warmed with ethanol at 100 degrees.

But you are right about the alkanol to amine.

[stonecold]

when naming molecules, hydoxyl takes precedence over amine yeah?

[chansthename]

yeah i think the only reactions involving NH3/production of an amine dont even involve catalysts?

for NH3 and an alkanol you must have alumina

[stonecold]

^yeah, you're right.

what about direct addition of ammonia to an alkene.  any catalyst needed?

[kenhung123]

I think precedence of functional groups doesn't really matter at VCE I think all you need to know is functional groups>double tripple>alkyl

[chansthename]

^yeah, you're right.

what about direct addition of ammonia to an alkene.  any catalyst needed?

don't ask me, I have no idea whether that is even possible. personally I would go the long route (turn it into an alkanol)

oh and I believe amine ranks higher than hydroxyl but lower than carboxylic acids.

[stonecold]

nahh dude, hydoxyl has precedence.

check this out:
http://en.wikipedia.org/wiki/1-Amino-2-propanol

[vexx]

thanks for reminding me to put acidified environment for water + alkene = alkanol

It applies for permanganate/dichromate as well.  you just need to write /H+

im going through past exams, and for water and alkene it's "heated with steam and a catalyst at 300°C" to form the alcohol.

[chansthename]

nahh dude, hydoxyl has precedence.

I concede

WRT the steam that is the reaction with H2O at 300 deg (where water is steam) with H3PO4, and a catalyst

[stonecold]

Huh, I was certain it is concentrated phosphoric acid that is catalyst for that reaction.

[chansthename]

Huh, I was certain it is concentrated phosphoric acid that is catalyst for that reaction.

H3PO4 is phosphoric acid (unless you were replying to vexx)

also I don't think it needs to be concentrated, the only concentrated one is H2SO4 for esterification

[vexx]

^ what i said above was taken directly from vcaa just so you know it's the most accurate.

[stonecold]

I know that H3PO4 is phosphoric acid lol.  Maybe in the highly unlikely event that it comes up in the exam, I just say catalyst e.g. H3PO4 haha

[cindyy]

Ni catalyst for hydrogenation

[chansthename]

Ni catalyst for hydrogenation

ion or molecule?