1. The problem statement, all variables and given/known data What are the products when 1-phenylbuta-1,3-dione reacts with diazomethane in presence of ether? 2. Relevant equations 3. The attempt at a solution I tried to do it this way: Since carbonyl carbons of 1-phenylbuta-1,3-dione , one of them might get attacked by the positively charged nitrogen of diazomethane ;and the oxygen ,will therefore (maybe?), bond with the other nitrogen . And then I think the ether will do something but the problem is I can't reason out what happens next or is this approach even correct or not. Is this some named reaction ? I tried to google it and stumbled upon the Nierenstein reaction but that is not exactly this reaction , right? Any hint or help will be REALLY appreciated. Thanks in advance.