Determine the Ester product formed when butanoic acid reacts with two propanol. All right, so remember that esterification is a condensation reaction. We're going to lose water and we do this by losing the OH of the carbicilic acid and the H of the alcohol and what's left behind.
Those pieces connect together to form an Ester linkage creating our Ester group. So here goes the Ester bond that's created and now it's connected to this portion. So this would be the answer that's formed from the compensation reaction or estherification reaction between butanoic acid reacting with two propanol.