 Okay, so let's try this one this just as proposed an efficient synthesis for the following transformation And I was really nice to you because I said note this synthesis takes more than one step Okay, because a lot of you like to only put everything in one step You know what I'm saying? So anyways the first step of course is going to be making the Griniard reagent Okay, because you've got to make This thing into something that will be a good nucleophile to you know create this rest of it so in order to do that Griniard reagent is you just add some magnesium metal and Ethanol the solvent okay, you don't necessarily even have to put ethanol in there and then once you do that of course you're going to Have the Griniard reagent very good nucleophile, right? Because if you recall like that carbanion right effectively, right? So the second step is going to be well What's right? This is the first step over here. So the next step is you want to have that carbonyl group, right? So in order to do that remember just add carbon dioxide Okay, and that'll give you the carboxylated anion. You remember that right? That's that's how to add, you know Because it builds a couple times a day. Did you put dry ice? Remember we talked to I think about this one Okay, so that right But we're still not there yet, right? We actually should have protonated this afterwards Okay, so this is in this case step one and two. So this would be one two three if you're looking at it that way So this would no longer be this And now would be this Nice catch. Thank you Used to be a receiver, you know, that's I have such good hands Anyways, so you could do this a couple of ways, you know Um, so I can't remember how how I let's see I did NA OET so sodium methoxide and ethanol, but you could have done it ethanol plus Hydronium either way would do the same thing and you're just going to take this proton remove it and add the effort so Like I said, I put on the key NA TT ethanol Which is fine or you could have done a good other one Ethanol H3O plus or H2SO or something like that kind of look either one of those will give you that product Do you want to go over that mechanism You want to do that Okay, let's do that mechanism So can I erase everything else then so we're looking at this I want to draw a mechanism for So you want to think of this is the carbanion and you've got CO2 Carbine you got these two Oxygen And of course, you still got that mg vr And then like you said H3O plus it and then metal any questions on that one