disubstituted Sulfide → Aldehyde + Sulfide<br>Monoalkylthiol → Aldehyde + H<sub>2</sub>S<br>Thiol alkene → Alcohol<br>Monoalkylthiophosphate → Aldehyde + Thiophosphate<br><br>Comments:<br>If there are two possible cleavage sites, will show products for both. Rule will produce cis products in rings with double bonds.