Chemistry help please!

sulfur compunds; ph is British and f is American.

1) Oxygen loves phosphorus. adios has it above. Oxygen LP feeds into P and kicks out a chloine and loses its hydrogen. You then have your intermediate which is a good leaving group. The chlorine either comes back in and eliminates or the leaving group falls off and you get a positive charge which is then atacked. sN1 and sN2 if you're really interested.

2) HCl salt. The starting material won't porbably won't dissolve though but they are probably not interested.

3) Amide. Ammonia in water reacting with an alkyl halide will give >98% of the amine. The reaction will only proceed about half way though due to the product from 2 being formed competitively.
 
Thanks all, really appreciate it. Your answers have made a lot of sense.
These are the answers we were given

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I'm still lost on the 3rd one!
 
not very clear on number 3 - the ring is not acylated under those conditions - it really needs a catalyst (AlCl3).
both groups will only react if there is an excess of the acylating agent - the question wasn't very clear in what they wanted.

i blame the question - its written badly and they seem to give marks for any old acylation and not the only that would happen in reality.
 
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