What’s a mechanism to account for the formation of a cyclic acetal from 4-hydroxypentanal and one equivalent of methanol. If the carbonyl oxygen of 4-hyroxypentanal is enriched with oxygen-18, do you predict that the oxygen label appears in the cyclic acetal or in the water?
Make a list of the 10 most popular casual dining restaurants in SF. Nothing too cheap (i.e. plate averages under $10) and nothing too expensive (i.e. plate averages over $30).