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21_ Draw the product(s) of the following reaction when these two compounds react together in Diels-Alder [4+2] cycloaddition reaction. Explicitly draw the hydrogen ...

Question

21_ Draw the product(s) of the following reaction when these two compounds react together in Diels-Alder [4+2] cycloaddition reaction. Explicitly draw the hydrogen atoms in the product to denote stereochemistry-

21_ Draw the product(s) of the following reaction when these two compounds react together in Diels-Alder [4+2] cycloaddition reaction. Explicitly draw the hydrogen atoms in the product to denote stereochemistry-



Answers

Draw the products (including stereochemistry) of the following reactions.

Hillary when they were doing chapter eleven forty six. And this problem asked us to determine the products of a two D and indicate the same chemistry slips her with a So, eh, we have this. I left your foot compound. We know that this is Elektra. Found Why, for two reasons while they're leaving, rebound on it. So we know that unnatural file needs a leading group Two actors Electra file into. We're adding a card on which is very, very, very include Felix. So right away, we notice the nuclear file. Therefore, this must be the electoral file, so we can imagine that that's what we have. We have a leading group bound to this carbon. This karma's a primary carbons with two of these bonds being Caucasian. Deterrent is just I still partition with two new chance. She's sorry. One neutron to make massive, too. On DH. We have won our group, which is a non hydrogen and non hygiene isotope. Adam. So we know that s into mechanism can be allowed here following Garson to us and one rules. So we know that we can do one hundred eighty degree backside attack to make a new bond when you make a bond, you know, breakable. So the chlorine leaving group will fall off. Remember, Ki distinguishing feature in S and two mechanism is that you have an inversion of stereo chemistry. So how do we invert the steel chemistry here? Well, we can draw the product of a as one, two, three, four, five We have five carbons and now the chlorine is gonna be replaced for our new nuclear fall. Get this chlorine, um, byproducts here. But we needed to invert the stair chemistry's how don't commune risk their chemistry while changing the positions of any two. Adams on the molecule will invert your Sarah chemistry. So how I like to do it is I have to change the Adams or the substitutes that are coming out of the pages of wedge and into the pages to ashes. If you just change these two positions, you will invert stand chemistry. So in the study material, Hye Jin's coming outs, that means in a product deuterium should be coming out. And in the spring of two of the terms going in, that means in product, Hydra has be going in. So it's our substitution products here and B once again, You have similar reaction mechanism going on here. But if you guys Comptel, you have a cardinal kind a carb carb. And I am here being in Nikola Fall and you have your left foot carbon. So if I were to make my ass into reaction here, I'LL get the product of B one, two, three, four, five. But now the chlorine would be replaced for my nuclear fall. And then But here's the thing. Remember, too in a virtual state of chemistry changes substitutes off to change location of two substitutions. Well, that's on ly the case for Carl Carbons Carl Center's order Carl Carbon is our Carl center is is a carbon with four unique subsections so determined haijun are unique. They're different from each other on this guy here is unique to the corn is unique but and b, we have two hundred attached to this actual Philip Carbon. So this is not a Carl center. So there cannot be any inversion of chemistry stare chemistry here because there is no Syria chemistry here. But what does exist is we retain this their chemistry of these substitutes that downfield on the molecule because they're not involved in any chemistry there. Just hanging out here while all the chemistry is going on. Is it the terminal end of this molecule? So, see, let's see what we have. We have in a park side was equal protons in east side. And we have a strong nickel Follow carbon ionic al kind. So well, we can do is we can identify that the nuclear file will attack on opposites sides are Parkside and it will attack on the least sub student sides. So in this case, both of them are equally substituted so we can attack from either side. Equal probability. So they're here. We make upon you break upon. So this optional pop up hydrogen and water will pro Nate this oxygen to make an alcohol. So now we get or alcohol here and then you get Unical follow task here and then what you'LL get is and inversion of stare chemistry. Actually, So what you're doing here and she steers countries not inverters retained because it's not actually an s and two mechanisms. So hydrogen on the scientists here was carbon is here on this side. You have your method group in hiding down here. So this is one product, but with equal chance. Your card and I own an attack on this side making a bomb. You make upon you break a bond just gives old minus bo minds will be probed Nated bye water given alcohol and you get your AL kind product here, Then you get your methyl group coming out of the page, your highs and going into the page inside. Same thing. Imagine coming out of the cage metal going into the page. But if I want to flip this molecule around, I would see that I just formed identical structures to this. So these two products are identical. There's no difference between them. You're identical. Doesn't actually matter what so this attacks on. So now let's see for this example here. So once again, we have a coolant carbons. So fifty fifty chance you can't talk on this side or the side Really plump side. So if he attacks on the blue side, do you get the blue product? Remember your stare. Chemistry's retained and then on the green side and get on the green side. You get the green product. So now he may be a one ramble are these? The same products are these, and an tumors are where this world this is where your molecular model kids come in extreme use. So if you were to draw each of these and you flip them such that you're all kinds would overlap. So if I would take this and I would flip it such that this is all coming over like this one, I would see that when I flip this This carbon originally is coming out of the page. That means after flip it really going into the page. And it's sort of reporting this. So and the blue Carmen's coming out of the page. But when I flip this Cartman, we're going into the page. You can see the hygiene were coming out of the page while this hydrogen is going into the page and I would've flipped this side, this molecule, this molecule with carbon coming out of the page, methyl group coming out of the page. But flip it. They know they're going into the page, but in the blue it's coming out of the page. So clearly is a non identical, non super possible mirror images of each other. So these are what we call in an tumors, so their unique stare products

All right or on this on this, because they're Trans, you're going to react together to form the cycle hack scene. And these two groups were going to be trans to one another indicated by a wedge, the Dodge or Steve to muscles of visions on the left hand side, rsp to hybridize and not need to have any storage mystery and see Wei have see it's confirmation as we're starting from thie Diana phone. Or did he? We have this dyin, which has a tether, birds connected to one another and to cycle Hexi known. Is he going to react? Generate your cycle. Had seen at this position give you your endo product. But these two bonds or the ones forms within the reaction r e have our dying a file and can, with single print going to react in the Endo fashion and point downward in the same way that we've seen the last Such that will have this point inward that pointing outward finally for Earth doesn't matter. We have this very chemistry indicated, but we have our dying. They're dying a file, but we're running this excess. We're actually going to react on both the left and the right hand side. Generate this, like right anymore. Scream cut stuff at that point. But I just back up where you draw that fuller as our final product.

This is the answer to Chapter 10. Problem number 23 from the Smith Organic Chemistry textbook On this problem says, draw the products of each reaction, including stereo chemistry. So these are both halogen nation reactions, and we should remember that, um, in a halogen nation reaction, we add Ah, the two. Um I don't want to say equivalents. We had we had the two Hala jin's, um, in an anti fashion. Ah, And so for a we have abomination. So, um, our potential products are these two. And so remember, this is going to be in an anti fashion so that products and this product, so one will be wedged in the other dashed Always they add the anti S o. B is going to be, uh, pretty much the same thing. So this is a coronation. The only difference here is we have a method group. So if the top chlorine ads from from the front that's gonna push the metal group to the back Ah, and then this other chlorine is going to add from the back because remember, they add in an anti fashion, Um, and the other possible product we could get here would be this one. So, uh, chlorine ads from the back the metal group will be wedged on. And then this other chlorine eyes going to add from the front. Because, remember, the Koreans have to be in an anti fashion. Okay. Ah, and so that's the way to approach this problem. We just need to recognize that both of these reactions or halogen nations on recognize that in a halogen ation of the elements, halogen are added across the double bond in an anti fashion. And that's the answer to chapter.

This is probably your mastery. Asked the substrate with this nuclear pile and to draw the products and clean very chemistry for these reactions. So the first thing you need to do is determine whether this will react by an s and one for an S into mechanism. So this substrate is on a secondary carbon, meaning that it can react either sn one or s into this is simply a file is weak, meaning that it favor favors s in one reactions. So the first step, and in us in one reaction is hetero Alice. So you show that but show the formation of the karma cada in here. The minute reacts with the nuclear file, and it attacks from either above or below producing a receive mick mixture of products that produces this. And it's an anti armor certain. So it produces both of these. So an anti armour means that it was in the national wish. And then it reacts further in a first on transfer with another molecules water. You produced the final product? Um, the secondary alcohol plasticine antimatter. Because Ehsan one reaction meaning that it's not serious with it. No. And then I'm part B the substrate is this Alfa here light and the nuclear file Is this so First you need to decide if it's gonna react by in us and want our innocent too. And it's at this. Carbon is primary meaning that can only react to fight. In essence, you. So regardless of the file Street, gonna react by accident. But this is a strong we file anyway, so that favors isn't well, so it's going to directly attack the carbon and to kick out the living room in the same same concerted step and essence. The reaction's always involved that inverse in stereo chemistry, so the product is going to look like


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