Enol ether → Keto + Alcohol<br>Aromatic ether → Aromatic alcohol + Alcohol<br><br>Comments:<br>Based on isochorismatase <a href="http://www.chem.qmw.ac.uk/iubmb/enzyme/EC3/3/2/1.html">EC 3.3.2.1</a>. Rule will produce cis products in rings with double bonds. If the substrate contains an enol ether, the reaction depicted by this rule produces an enol product. This spontaneously tautomerizes to the keto form, thus the keto form is shown in this rule.
