Please Help Me with Organic Chemistry?

I would appreciate any helpful input on this organic problem. I am really confused on this one. Thanks for any help :)

It's a synthesis and is linked below:

http://i110.photobucket.com/albums/n114/...

Answer:
Here is the mechanism step by step.
1. Open up the hemiacetal under acidic conditions ie put a hydrogen on the oxygen in the ring. This will make the protonated oxygen positively charged. Then move the electrons down from the secondary OH to form an aldehyde. Continue moving them on to the protonated oxygen.
2. Once you draw this molecule then attack the primary OH on to the aldehyde to form another hemiacetal. This new hemiacetal is your product.
I hope this was written clearly enough to understand it. I wish I could draw it out for you and you would realize it is not too difficult. Good luck.
A guess. Open up hemiacetal with with dilute HCl and reform hemiacetal in 6 - membered ring (more stable)

The answers post by the user, for information only, FunQA.com does not guarantee the right.



More Questions and Answers:
the bunsen burner?
  • D2sp3 hybridization?
  • Column chromatography?
  • What compounds, other than silver nitrate, can be broken down by chemical means involving light energy?
  • Need to give a presentation on Electron Affinity - need some help?
  • Ques-How does a gas lighter work?
  • Chemistry gas pressure help?
  • I'm asking about Carboxylic acid and its Derivatives. We were ask to research in advance prior to our expt.
  • How can heat contain electrons?