Good conversions

@AIEEE.....what kinds of compounds are : (ICH₂CHCH₂) and (CH₃CH₃CH₂COOH) WHICH YOU HAVE USED IN THE THIRD AND SECOND CONVERSIONS RESPECTIVELY !!

sorry fr the wrong ans...

well .....when you want some "explained" mechanism :

debotosh what uve written will NOT give you what is required as the final product... please explain how ull get a CLOSED ring????

@ debotosh is the second one complete .just check the Q please

@indraneel..ur ans is wrong.

@ organic ...yes 2nd one will be done by acylation reaction
but i did in a bit diff way..i will post mine soon..

and 3rd one is OK by aieeee,,,

u have some diff method ..tehn post..

indraneel.......you seem to have gone berserk.....what the hell can selenium do there ??? we use Se and heat to form a complete ring when some conjugation is present in the ring !!!!
we use this concept in the conversion of benzene to anthracene using thalic anhydride!!!!

hey explain the 3rd one.

for the second conversion ......add (1)CH₃CH₂CH₂COCl (2) AlCl₃ ......simple application of FRIEDEL CRAFTS REACTION.

3rd is OK....but I have some doubts regarding 2nd conversion.....

3)

dont know dude......
i dont know why the forum as slowed down ....[2][2]

no one intrested ?????

no one trying ???