This is by no means meant as flaming or degrading post, its merely a guideline!But my intuition tells me that a aspiring chemist
asking about how to go from PMP2P to P2P in the newbee forum is by no means fit to work with F/C reactions. They are not very easy to work with, the yields are usually quite low and chloroacetone is very nasty to work with!
If you really want to make P2P, id suggest the following routes as more "newbee" friendly:
1)
Condense benzaldehyde with nitroethane, to get P2NP. Reduce this with SnCl
2 and hydrolyze the resulting oxime using standard methods to get P2P in nice yields.
2)
Start with propiophenone, which you can reduce and dehydrate in one pot with good yields to 1-phenyl-1-propene. From here one can use the standard performic oxidation to give P2P.
What it all comes down to is what precursors you are able to obtain. P2P is really a very simple molecule which can be made in many many different ways. Some more complicated and dangerous than others
But - you've got to be able to crawl before you walk, so i'd suggest you start with something a little more simple than Friedel Craft reactions. I know it looks very appealing because of the "one step to P2P from benzene" appearence... In my own novice days i also toyed around with it - but guess what; the only thing I got was a severe case of lachrymator poisoning and zero P2P. So it's not a nice route to work with.
Regards
Bandil