Topic: i need help please (Read 5701 times)

soliman · « **on:** January 25, 2008, 12:19:28 PM »

hi all
i need synthesis of organic compounds book

agrobert · « **Reply #1 on:** January 25, 2008, 12:27:52 PM »

soliman · « **Reply #2 on:** January 25, 2008, 12:38:45 PM »

thank you for your help
can you help me in methode of preparation of 4,4'-biphenyl dicarbonyl dichloride

Arkcon · « **Reply #3 on:** January 25, 2008, 01:06:42 PM »

soliman · « **Reply #4 on:** January 25, 2008, 01:44:35 PM »

thank you
need procedure for preparation of 4,4'-biphenyl dicarbonyl dichloride

sjb · « **Reply #5 on:** January 25, 2008, 02:12:49 PM »

thank you
need procedure for preparation of 4,4'-biphenyl dicarbonyl dichloride

How about reacting methyl para-bromobenzoate via the Ullmann reaction http://en.wikipedia.org/w/index.php?title=Special:Cite&page=Ullmann_reaction&id=154192787, then hydrolysing the esters down to the diacid and forming the dicarbonyl chloride

(edit adding space to clarify link)