Organic Chemistry

Hello all, I produced about 100 mL of wood tar via dry distillation of spruce wood in a small oven. I would like to purify the tar product by removing amines (and a few other impurities), but am unsure about the best way to proceed. How exactly would I perform a liquid liquid extraction to do so, and what kind of solvent would you recommend? Thanks in advance, Thomas

can anyone help me with the organic chemistry exam Next Month Or I Was Suggested to Take the Coaching or Tutoring Classes. While Researching I found This Tutor Suggestions - (links deleted) Thanks in advance for Your Valuable Suggestions!

I have a problem with the nitration products of 1-benzyl-4-bromobenzene and 1-nitro-4-phenylbenzene. Could somebody at any point clarify how for cut these mixtures and in which positions ortho, para or meta to put the amino group. Much obliged to you for any assistance.

I'm searching for a natural compound or a class of mixtures normally present in waterways (lakes, oceans) which could possibly tie progress metals. Up until this point I had the option to track down just humic acids for instance. Any idea on another compound?

Hello everyone, I'm a master's student in Biology and I'm facing a problem understanding the difference between the 2 reactions. I'm not specialized in chemistry or organic chemistry and have the basic knowledge. In an experiment one of my predecessors did, he used NaBH4 to react with Dihydrouridine (see file), and the modification occurs on the base (not the sugar), causing either a cycle opening or a reduction of the carbonyl group (I don't even know if both are correct, so do tell me about these reactions please). This was the positive control because once this step is done, he uses the newly-produced compound to react with NH2-Rhodamine (how can it attack the new…

Why only amino (-NH2) group in the amino acid show color reaction? Why not COOH?

Hello! Is it possible to decarboxylate saturated carboxylic acids at a high temperature (above 400-500+)? I found an information that only beta-keto acids can be decarboxylated and some specific reactions using catalyst, but everywhere temperature is around 150-200C. However, if acids have been annealed above 500C+, is decarboxylation with an intermediate in the form of carbcation possible? Not only acids, but also other carbonyls?

Hello I have a question concerning the rotary evaporator, how can I know what temperature should be used ? Here are my 2 experiments, 1) but I don't know what temperature should be used during the concentration under reduced pressure 2) Also I don't know what does it mean 1.1 equivalents for the part one that I have 4g * 1.1 as Cbz-beta-Ala-OH ? 3) I wrote the mechanism of the part 2 but I am not sure if it is correct, please correct me if I am wrong. PART 1: Cbz-beta-Ala-OH To a solution cooled to -10°C of Cbz-beta-Ala-OH (4g) in pyridine (26,9mL) and tertio-bulanol (44,8ml) in a 100 ml anhydrous two-necked um pallion, is added ph…

I don't understand why I recently left bed bound with severe bloat after eating onion soup, but not onions in a Bolognese ? Let me explain: I purchased a pre-made store bought onion soup from a well known supermarket with the following ingredients: INGREDIENTS: Water, Onion (30%), White Wine, Cornflour, Butter (Cows' Milk), Yeast Extract, Tomato Purée, Onion Stock (0.5%) (Onion Extract, Black Treacle, Sugar, Water), Vegetable Glace (Sugar, Concentrated Vegetable Juices (Onion, Carrot, Leek, Garlic), Salt, Cornflour, Vegetable Oil (Sunflower, Rapeseed), Water, Nutmeg Extract), White Wine Vinegar, Salt, Thyme, Black Pepper. Shortly after eating it I was lef…

Discuss in this thread whether artificial protein synthesis is possible.

Could someone explain me why glycine isn't soluble in organic solvents. My prof said this today !! If you take some pure glycine in water it should be a zwitterion, so there would be positive and negative charges. That means it would be very soluble in water. Secondly, the R-group in glycine is -H, not very apolar ! But organic solvents can be polar (methanol, ethanol, ...) and apolar (heptane, ...) !! So, it would be soluble in methanol and ethanol, but not in heptane. Then, why does he says it's NOT soluble at all in organic solvents, included methanol and ethanol ???

Hi, Does anybody have any suggestion witch chemical solution would be a good substitute for MIPA (1-Amino-2-propanol). I am looking for very polar solution with high boiling point (more than 240°C). Any suggestion what can I use? Tnx

Does anybody think it would be possible to make drinkable alcohol purely through chemical synthesis (no fermentation).

Hello, is the product of this reaction correct? I'm just not sure if the oxetane is stable enough to form. Are there other possible products? The instructions say it should be an Sn2 reaction but none of the other reactions in this exercise have been intramolecular so I would like to be sure.

Good day. Never done it; never seen it done. Read a lot about safety and many other details and would like you green light on the video ---> https://www.youtube.com/watch?v=D070-PHjDLM&ab_channel=HowtoMoonshine in case something is missing ! Have that countertop 'air distiller' shown, with differences: Added a digital temperature control; and the lid internals is plastic instead of another models being stainless. In my ignorance, a sugar mash is the safest for beginners on this machine. Am ready to start preparing the mash one of these days, after your blessings.

Why does the Organic Chemistry by John McMurry state: “carbonyl reduction is irreversible because the reverse process would require expulsion of a ery poor leaving group.” The re-oxidation of alcohol back to aldehyde is a well-known reaction. How could it be irreversible? The book also states the same with the reaction of aldehydes with Grignard reagents.

Hi, I am a physician (it's been many years since my college chemistry classes) and currently working on developing a safer brand of cleaning/disinfecting wipes than the standard wipes using quaternary ammonia. I am particularly interested in using citric acid due to it's safety for humans and the environment, but also because it has been showed effective and EPA approved against many pathogens, including COVID-19. I had been working on diluting solid food grade citric acid in distilled water at different concentrations. I started at 6% by weight and most recently went down to 0.6%. When this solution is used to clean/disinfect a surface then left to evaporate, i…

I read the following comment on a Telegraph article about Hydrogen power, and the conversation swayed on to Global Warming, and wanted to know if what was written was factually true: The most abundant greenhouse gases in Earth's atmosphere in decreasing order are water vapor, carbon dioxide, methane, nitrous oxide, ozone, Chlorofluorocarbons, Hydrofluorocarbons and Perfluorocarbons. Some points that may be of interest: • Without any greenhouse gases, the average temperature of Earth's surface would be about −18 °C, rather than the current average of 15 °C. • The atmospheric concentration of carbon dioxide has increased by almost 50%, from 280 ppm in 17…

the chemical name of 2,3-dimethyl butane has structure with a ch3 up and down. is it possible for both to be up? what is the name given to that? do the have same/similar properites or different?

Could anyone tell me why this reaction is sn1 and not sn2? ps: the OH shouldnt be on the phenyl. thanks

Hey so my professor did this example in class and drew one of the products, but he didn't mention the leaving group product that results. I have drawn the product I think that would result from the leaving group below. I don't know if it's correct. thanks in advance

I have a strong interest in the gut microbiome, but my ignorance of organic chemistry is stumping further progress. Can anybody suggest any good primer titles to get me started. My current level of inorganic'physical chemistry is around 17-18 year old student stuff. It's probably a bit more now as a 60 year old but that's the general idea. @hypervalent_iodine @CharonY

Hi all, I'm in the process of developing a web based application with the goal of it functioning as a tool for organic chemistry students as well as a synthesis pathway search engine. I would greatly appreciate any feedback. www.organicchemmaster.com Of note it has recently been capable of detecting a pathway from benzene to aspirin (2-acetoxybenzoic acid): https://www.organicchemmaster.com/Molgen/Reaction/benzene/2-acetoxybenzoic%20acid?options=Calc Thanks

Hi, a few days ago i took an exam and there was an exercise that required to do a scale of stability of the alkenes. I had to do an E2 with NH3 on the 2-metyl-3R-Cl-4S-F pentane. I obtaneid these two. Which is more stable and why? Sorry i forgot the F on the second one.