Ozonolysis Puns

I am looking into piperine ozonolysis and i am simply wondering if using zinc dust as my reducing agent would yield the desired piperonal. Also what quantity of zinc dust do I need per mole of piperine?

So iam trying to break in alpha-linolenic acid at 12th carbon position but leave the one in the 15th position untouched

What i have found in my experiments this mostly just random, with 33 % yields...and iam not from a chemistry background, being a microbiologist, this is seems out of my league, any help would be appreciated

“Ozonolysis is the oxidation of an alkene to one or two aldehydes, one or two ketones, or an aldehyde and a ketone.” Source

Above is the definition I found for ozonolysis. I’m just wondering how each scenario occurs. Like if I wanted just one ketone and nothing else, how would I do that using ozonolysis? I’m assuming that if one of the carbons on the double bond is attached to only one other (alkyl) substituent, an aldehyde will form and if it’s attached to two (alkyl) substituents, a ketone will form. I’m also assuming rings can form diketones, dialdehydes, or a compound with a ketone and an aldehyde (Idk what that would be called and I’m guessing the same substitution rules would apply). Also I’m assuming a terminal double bond vs internal double bond would matter too.

I have the equation figured out (under reductive condition), isoprene + ozone ---> 2CH2O + 3C3H4O2, but I can't figure out what the half-reactions are.

After more than seven decades, Criegee intermediates (CIs) are back at the forefront of modern chemistry. They play an important role in the mechanisms of chemical reactions, total synthesis, pharmaceuticals, climate‐controlling aerosol formation, as well as atmospheric chemistry. This Minireview summarizes key aspects of CIs, highlights recent progress in CI chemistry, and illustrates possibilities for further investigations.

Abstract

After more than 70 years since their discovery, Criegee intermediates (CIs) are back at the forefront of modern chemistry of short‐lived reactive intermediates. They play an important role in the mechanistic context of chemical synthesis, total synthesis, pharmaceuticals, and, most importantly, climate‐controlling aerosol formation as well as atmospheric chemistry. This Minireview summarizes key aspects of CIs (from the mechanism of formation, for example, by ozonolysis of alkenes and photolysis methods employing diiodo and diazo compounds, to their electronic structures and chemical reactivity), highlights the most recent findings and some landmark results of gas‐phase kinetics, and detection/measurements. The recent progress in synthetic and mechanistic studies in the chemistry of CIs provides a guide to illustrate the possibilities for further investigations in this exciting field.

https://ift.tt/3cb1ylU

I am looking for the conditions to add O3 to an internal alkyne for a yield of two ketones. Is this even possible or will I first need to reduce the alkyne to an alkene?

Please take a look at these pictures:

https://photos.app.goo.gl/HbqSigBMQKMv5V9s9

I need to figure out the products of the ozonlysis above. In my textbook, I've seen dimethyl sulphide, zinc dust, and hydrogen peroxide being used in the second step, but never water. I looked at the mechanism (which I've linked above) but can't figure it out. :(

Apart from like material on hand is there a reason to use one instead of the other?

Hi,
I remember a paper in which a regioselective ozonolysis was done, by mixing in a dye which was destroyed by the ozonolysis. The rate for one double bond was faster than for the dye, the other slower, so that the disappearing colour was the telltale to stop the reaction. But I cannot find it or any like it again. Does anyone have better luck at searching or a better memory than me and could point me to the paper?

I am currently in an Organic Chemistry II course and I need some advice. I was given my final (don't worry the professor has made it open book & highly suggests using outside sources) in which I have mostly figured out the mechanism for. I am slightly struggling though because part of our final is to write up a procedure for our reaction. My reaction involves ozonolysis to break a cyclopentene and form two ketones. I understand my mechanism, but I have never personally performed an ozonolysis. Can someone please give me tips or a resource on the procedure of an ozonolysis of alkenes in the lab?

We have a Clearwater tech model M-15 ozone generator, and we are preforming ozonolysis on a vitamin D2 derivative. This work has gone smoothly in the past (I guess) for this company, but now the reaction does not appear to be progressing. Some internet snooping has alerted me that an ozone generator for hot tubs (which is like what we have) typically last three years, and our machine is older than that, however it certainly has not been used as frequently as you might for a pool or hot tub. Is there a chemical test I can do to test the instrument? Not sure if the starch strips would say much, except that there is or is not ozone, which I think is probably not accurate enough to say that the instrument is working sufficiently.

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Hello all,

I'm curious about the mechanism of the oxidative (i.e. hydrogen peroxide) workup of the ozonolysis reaction. I've seen a hundred resources explaining the reductive (i.e. dimethyl sulfide) workup, but haven't been able to find anything for the opposite. Does anyone have any good resource or explanation they could send my way?

Thanks!

I was given this structure and asked to predict its final product when it reacts with excess ozone and Zn + HCl.

Problem: http://imgur.com/CHF1gEU

The answer to this question is: http://imgur.com/slXgJjN

I've been on this question for 30 minutes already drawing all different kinds of configurations. Can someone please explain this to me step by step? Mechanisms are welcome too!

I don't want to step on anybody's toes here, but the amount of non-dad jokes here in this subreddit really annoys me. First of all, dad jokes CAN be NSFW, it clearly says so in the sub rules. Secondly, it doesn't automatically make it a dad joke if it's from a conversation between you and your child. Most importantly, the jokes that your CHILDREN tell YOU are not dad jokes. The point of a dad joke is that it's so cheesy only a dad who's trying to be funny would make such a joke. That's it. They are stupid plays on words, lame puns and so on. There has to be a clever pun or wordplay for it to be considered a dad joke.

Again, to all the fellow dads, I apologise if I'm sounding too harsh. But I just needed to get it off my chest.

The nurse asked the rabbit, “what is your blood type?”

“I am probably a type O” said the rabbit.

Mentos

(I will see myself out)

The doctor says it terminal.

Alot of great jokes get posted here! However just because you have a joke, doesn't mean it's a dad joke.

THIS IS NOT ABOUT NSFW, THIS IS ABOUT LONG JOKES, BLONDE JOKES, SEXUAL JOKES, KNOCK KNOCK JOKES, POLITICAL JOKES, ETC BEING POSTED IN A DAD JOKE SUB

Try telling these sexual jokes that get posted here, to your kid and see how your spouse likes it.. if that goes well, Try telling one of your friends kid about your sex life being like Coca cola, first it was normal, than light and now zero , and see if the parents are OK with you telling their kid the "dad joke"

I'm not even referencing the NSFW, I'm saying Dad jokes are corny, and sometimes painful, not sexual

So check out r/jokes for all types of jokes

r/unclejokes for dirty jokes

r/3amjokes for real weird and alot of OC

r/cleandadjokes If your really sick of seeing not dad jokes in r/dadjokes

Punchline !

Edit: this is not a post about NSFW , This is about jokes, knock knock jokes, blonde jokes, political jokes etc being posted in a dad joke sub

Edit 2: don't touch the thermostat

Are there any textbooks that contain compiled protocols/conditions for common organic reactions (ex. SOCl2-mediated chlorination, Mitsunobu, Grignard, ozonolysis, etc.) targeted at young graduate students?

Do your worst!

How the hell am I suppose to know when it’s raining in Sweden?

Mathematical puns makes me number

We told her she can lean on us for support. Although, we are going to have to change her driver's license, her height is going down by a foot. I don't want to go too far out on a limb here but it better not be a hack job.

So iam trying to break in alpha-linolenic acid at 12th carbon position but leave the one in the 15th position untouched

What i have found in my experiments this mostly just random, with 33 % yields...and iam not from a chemistry background, being a microbiologist, this is seems out of my league, any help would be appreciated