Which reaction proceeds by anti addition

So if I behave those electrons as a nuclear file to attack this Carbonell, I'm eventually gonna move these electrons up to the oxygen to eventually form the product that I have written down right here.

And I'll just go through that mechanism really quickly, So these electrons are gonna behave as the nuclear file. They're going to attack this Carbonell so and this one, I'll draw the one in blue. That is the one that is going to look like this in which I have my own minus up there because the electrons move up to the auction. I have my hydrogen here and then in red, I'll draw out this one. My former nuclear file. So my nuclear file, the carbon, the Alfa carbon Right here.

So this carbon is this one? Okay, attached that carbon. We have the connection to a method group. We have the connection to my Carbonell and then my hydrogen. Okay, So as we can see, this looks very similar to the final product that I need to get. But the only difference being that I have an o minus right. And then the final step in the elder audition reaction is the protein nation of that. Oh, minus right. So I'm just gonna go ahead and Protein ate that. Okay, So as we can see, we start off with two of the exact same Alba hides, right?

I just drew them in different orientations. But we start off with two of the same Alba hides. Chemistry is the science of matter, especially its chemical reactions, but also its composition, structure and properties.

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Note that just because an alkene is more stable b , doesn't mean that it is not the most reactive c. Write both of these possible products for further consideration. So the preceding reaction must be the elimination reaction E2 to give cyclohexene.

The SN2 substitution reaction is a dead end. Working backwards, how could the alcohol product be synthesized using an alkene that is different from the one shown in the question? The methods are listed below, in order. Apr 6, Too many to list! Some common ones we often see, are: Anti dihydroxylation acidic workup after epoxidation Halogenation due to the halonium intermediate : if this is carried out in the presence of water or ethers, halohydrin or haloether addition can occur.

Oxymercuration-demurcuration due to the mercurinium intermediate Most of these have in common a first step in which concerted syn addition occurs, following by an SN2 step where a nucleophile attacks the more electrophilic carbon generally Markovnikov regioselectivity. It can be done in an alkyne with dissolving metal reduction, however. Good question! For the name of 1,2-dimethylcyclohexene, why there is no position number before -ene- indicates where the double bond is.

I probably should have put it in. How do we know if the reaction proceeds via syn or anti addition when predicting the major product of the reaction? Through experiment. And reading about the results of these experiments in your textbook.

But how do you decide which compound undergoes syn and which anti secondly suppose there is reaction of 1 methyl cyclo hex2ene in which MCPBA is used and then H2O is used where O18 is radioactive oxygen then would the addition be decided according to MCPBA or H And please tell how to decide whether its syn or anti.

H2O will will then react with the epoxide formed. It will be anti addition, for reason refer to mechanism preferably from Solomons from a book or from the internet. It seems that the atoms like to switch their orientation after the rxn…why? Please advise. Thank you. It depends. If you are reacting an alkene with an X2 reaction, the products will be anti only. Draw out the mechanism for the X2 reaction ex: Br2 and you will be able to see that the X in X2 can attach from the top and bottom of the carbon due to its p orbitals.