1. The problem statement, all variables and given/known data http://i43.tinypic.com/nxvw41.jpg Ok here it is molecule B. http://i39.tinypic.com/333aaro.jpg Ok and here it is problem nr. 8, second molecule. 2. Relevant equations No equations needed. 3. The attempt at a solution 1) So why is it that we do not add any acid here, as far as I know one need acid, in order to do a succesfull carbonlyl or conjugate addition, right? So how come? And because it is LiMe (which is a hard nucleophile) I think it will be a carbonyl addition, so am I right? 2) Well I did not really get that far as I am really not sure how to produce an ether from conjugate addition... So how to? Edit: images replaced with links; please don't post large images as they are breaking forum formatting.