I am looking at a reaction where Zinc Dust and ammonium chloride in water and ether splits a hemiketal into a ketone and terminal alkene. I am very unfamiliar with metals and so I don't know even where to start to try and figure out the mechanism. I do know that the hydroxyl group turns into the ketone and that there looks to be the loss of water.
Any help with even how zinc dust and ammonium chloride react would be helpful as well. Thanks!