OK, so I just got out of an organic chemistry exam. I feel pretty good about every question except one which I did not know - please help me put my mind at ease! What is the major product of the reaction of this molecule: http://img216.imageshack.us/my.php?image=stupidthingdw3.jpg with the following steps: 1.) 1% aq H2SO4, boil 2.) isolate product 3.) PCC/dichloromethane I had no idea how the reaction occurred. I guessed that the final product was an aldehyde (methanal?) because I know PCC reacts with alcohols to form aldehydes/ketones (and that's all I knew). What is it?