This is the answer to Chapter 11. Problem number 61 on this problem says, devise a synthesis of each compound from ethanol as the only organic starting material. Ah, and we're told we can use any other re agents that we need. Ah, And so for a, um, we are trying to get two this al kind all and so we're going Thio have to build ah, carbon chain on install functional groups at the proper locations. Okay, so to get started, um, we can do it on elimination reaction here s so we can use concentrated sulfuric acid and he, um and that is going to give us just this Al Keen. So I've seen, um, we can then Bram innate that using elemental bro mean you are, too. That's gonna give us to die, bro. Mo compound. Um and we can then treat that with two equivalents of sodium a mine, uh, to get to e al kind. Okay. And so now, from the al kind, we can start building, um, the rest of this molecule building the carbon chain. And so we can de protein eight with sodium hydride to get, uh, the satellite I on on. And then we can, um, use ethyl bromide. Ah, and I guess I should include I'll put it, put it down here. This ethyl bromide that we're using, uh, could be made from ethanol and PB or three. Ah, and that will give us Ethel Bromine. So it didn't say we were only allowed to start from ethanol. So there is a way to make something that we need from ethanol. Um, okay. Ah, So once we do that, we're gonna have this. All right. So, um, we can now, uh, d Protein ate this again with sodium hydride deep, roni, uh, and then used that satellite eye on as nuclear file to open this up oxide. Um, and then protein avian pox I water. Ah, and that is actually going to get us to our product. Um, so there we go. There's our product. Um, And that a pox side that to carbon a pox side there we could make from ethanol like this. There's our ethanol home. Ah, doing elimination, Consul, Ferric acid and heat. That's gonna give us the l keen treat that al keen with, um bro, mean, but with some water in it to get the addition of a bro mean And, um, an alcohol. Um, And then if we treat that with a strong base of sodium hydride Well, deep throat, Nate, the alcohol on it can attack and displace the roaming. And so that's how we're gonna get thehe Parkside that we need. Okay? And so everything is made from ethanol here. So then, for port B is his problem. Um, for part B, we are going to follow. Ah, um similar. Well, actually, we don't We don't really need to follow anything. So for part B, we can start from the product from part, eh? So we just went over how to make this. So this is the products from part, eh? Um and yes, I'll label this from a Yeah. Ah, and so we can just d protein ate this alcohol with sodium hydride. Um, that's gonna give us d protein ated alcohol. Now, if we react that with the effort Bromine that again, Uh, I went over how to make in part a of this problem. Uh, we will get the ethyl ether here. Thank you. Okay, So there we go. There's the answer to port. Be again. We started from the product from part A there. Ah, And then here's part A. We made a couple of things that we needed from from ethanol. Um, and used several reactions that we've learned in this chapter. Ah, and that's the answer to Chapter 11. Problem number 61.