English143
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Last edited by English143; 2 months ago
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charco
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(Original post by English143)
Hi, very urgent question and would really appreciate your help even if you are unsure. Thanks for your help the question is attached below. I know that part 1 is dehydration and concentrated phosphoric acid but am not sure about step 2 and step 3. Thanks

Attachment 1036709
Well you have a diol that has been formed from a double bond.

You can go via an oxirane (epoxide) using a peroxyacid and then hydrolyse it ...

or you can do this directly with potassium manganate(VII) (actually via a complex)

or more exotically with Osmium tetroxide

References:
1. https://chem.libretexts.org/Bookshel...is_of_Epoxides
2. https://chem.libretexts.org/Courses/...ion_of_Alkenes
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