One of the most bizarre reactions in chemistry is called the Ugi reaction: R1C(=O)R2 + R3 - NH2 + R4COOH + R5NC S R4C(=O)N(R3)C(R1R2)C=ONHR5 + H2O

(a) Write out the balanced chemical equation for the Ugi reaction, for the case where R = CH3CH2CH2CH2CH2CH2— (this is called the hexyl group) for all compounds.

Video transcript

Hello everyone today. We are being given the following problem and asked to solve for it. So it says Esther's or organic compounds that are known for their pleasant smell. They can be produced through an organic reaction called the Fischer Fischer verification where car broke cilic acids react with alcohols to form the ester. We then have the following chemical reaction here and then it asks us to write the balanced reaction equation for the formation of ethyl hexane and Esther with a pineapple like odor. Where we have where one R group represents a pencil group and the second part to group represents an ethyl group. And so we simply need to replace each of these R one R two groups with their respective groups. So for the first one for the reactant we have our one which is CH. Three and then we have four CH two groups connect to that central carbon with that car boxer group. We then add this With the R two that's attached to that, that Hydroxyl group, which is this H three. See ch two connected with the hydroxyl group and this is going to form this which are one representative pencil group. So we have that CH three CH two Followed by four CH 2s connected to a central carbon that has a ketone like structure with that oxygen. And that carbon is connected to another oxygen. That on the right side of that is connected to an R. Two group which is an ethyl group or CH two CH three. We then have a byproduct of water and this is ultimately going to be our final answer. I hope this helped, and until next time.