# Benzene from cyclopropane-1,2,3-triyltrimethanol in acidic medium

What is the mechanism of this reaction? After performing $\ce{E1}$ thrice I was expecting 1,2,3-trimethylidenecyclopropane to be formed instead.

I know it's highly strained but I couldn't adopt any other pathway to reach any other product.

Is the triene product not formed at all? If cyclopropane-1,2,3-trione can exist I think even the triene product can.

This reaction is from my exercise book, couldn't find it on orgsyn.org.

• This reaction does not show up in Scifinder. The triol is known though: Org Lett, 2007, 9, 2617 DOI:10.1021/ol070707r – Dennis Cao Jul 10 '18 at 17:01
• No hits on Reaxys either. I strongly doubt it is real. – orthocresol Aug 1 '18 at 6:21