Questions tagged [organic-chemistry]

Use this tag for questions relating to organic molecules and their properties (structure of organic molecules, spectroscopic properties, reaction mechanisms, stereochemistry etc). DO NOT use this tag as the only tag in your question, as this tag by itself cannot appropriately classify your question. Always use this tag in addition to other more specific tags.

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27 views

Why do certain compounds dissolve in oil? Why do some types of compounds dissolve in oil, yet not water?

Sorry if this is an obvious answer. I tried rewording this question every way I could, but search engines came up with nothing- they all skirted around this exact question. Why do certain compounds, ...
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Does aspirin at all react with Ethanol?

Can acetylsalicylic acid react with ethanol, either directly, or indirectly, in any amounts? Can it and/or salicylic acid form esters with Ethanol? Wikipedia more or less indicates that aspirine would ...
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Compare the Ka values of the α-H of alkyne and the β-H of alkyl halides

I know that the α-H of alkyne and the β-H of alkyl halides have weak acidic nature, but there is not enough information of their relative strength. Please compare their acidic nature giving suitable ...
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Do all aromatic compound containing carbon side chain get oxidised by H+/KMnO4 to benzoic acid?

I know that alkylbenzenes except tertiary alkylbenzene can be oxidised to benzoic acid by using acidic KMnO4. Will the side chain also be oxidised if it contains other functional groups (eg:- alcohol, ...
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2answers
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How to balance the following chemical equation using Oxidation number method?

C2H5OH + Cl2 -> CHCl3 + HCO2- + Cl- + H2O (In basic medium) My attempt - Chlorine is in 0 oxidation state in Cl2 and it is changing from 0 to -1 in both CHCl3 and Cl- C2H5OH has two carbons and ...
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1answer
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Selection of parent carbon chain for IUPAC naming

How to select the parent carbon chain for IUPAC naming of following compound? I think the red numbering is correct, but in the answer key, they have used the blue numbering. Which is correct? My ...
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Why is Tyrian purple called 6,6'-dibromoindigo if all carbons are numbered differently? And the bromines are at opposite ends?

If the two bromines are attached at opposite ends of the molecule, why are they both labelled with a 6? Also, why is 6,6'-dibromoindigo not called 1,1'-dibromoindigo if carbons in a ring are numbered ...
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Why trans-1-chloro-4-methylcyclohexane have a higher relative energy than trans-1-chloro-2-methylcyclohexane?

Both can be A,a or e,e, in 1,4 the groups are further apart -> less steric strain, why is 1,4 less stable according to experimental values? 1,2 high energy conformer's relative energy (kj/mol) is 4....
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Glycyrrhetic Acid and Cortisol

Glycyrrhetic acid can lead to a syndrome known as apparent mineralocorticoid excess. These side effects arise from the inhibition of the enzyme 11-ß-HSD and subsequent increase in the activity of ...
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Unsure whether this classification of Volatile Organic Compound and/or Particulate Matter is correct

I am asking on behalf of a friend so please bear with me! Instructions: For each chemical, classify whether it is a VOC (Volatile Organic Compound) and/or PM (Particulate Matter 2.5 or Particulate ...
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What are the unique reactions of conjugated carbon containing carbonyl compounds?

Various sources give different ideas about the reduction reaction of α,β-unsaturated carbonyl compounds which have conjugated carbon. Just like cinnamaldehyde do aliphatic α,β-unsaturated carbonyl ...
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Is carbon making five bonds in benzene

a single C-atom in benzene is sp2 hybridized so it makes 3 sigma bonds and the other pi bond is delocalized.that pi orbital makes bond with not one but two pi orbitals that is why we say that there ...
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1answer
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Proton NMR splitting in 2-substituted furan

I have recently run proton NMR on 1-(furan-2-yl)ethan-1-ol I synthesised in the lab. My 400 MHz spectrum consists of the following peaks: 7.36 ppm (dd, J = 1.9, 0.9 Hz, 1H) 6.31 ppm (dd, J = 3.3, 1....
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comparision between basic nature of CH3O- and -OH

when comparing the basic nature of $CH_3O^-$ and that of $OH^-$. I found two arguments. one favoring the more basic nature of $CH_3O^-$ and the other favoring the basic nature of $OH^-$. so which of ...
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In what case would water attack the least substituted carbon in an oxymercuration–demercuration reaction?

I understand that oxymercuration–demercuration is textbook Markovnikov. However, in a case like this, where the $\ce{OH}$ is formed on the least substituted carbon (secondary) rather than the most ...
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1answer
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Type of diagram and ordering of bonds used to depict a glucose molecule

I find these type of diagrams easier to consult when building molecules using a 'molecular building kit'. Is there a name for this type of diagram? For the glucose molecule (in the above diagram), I ...
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Baeyer's test with potassium sorbate [closed]

what is the soulution of this reaction ? sodium (E,E)-hexa-2,4-dienoate +h2o + mno4- --->
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Reaction mechanism involving nitration and the addition of a base

I know the first reaction is likely a nitration with nitrite at the ortho position, but I can't figure out what comes next with the base.
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1answer
34 views

Reaction of Alkane RCOOH with KOH [closed]

The question is as follows: As much as 4.4 g of organic acid RCOOH is precisely neutralized by 200mL KOH 0.125 M.The molecular formula for the organic acid and the name of the acid compound with one ...
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Reaction of C4H10O with HI

I just finished my highschool chemistry test this morning, and I got a question which I can't seem to find the answer to. The question are as follows: Compound A ($\ce{C4H10O}$) does not react with ...
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Reaction of potassium sorbate with bayer's reagent [closed]

what is the solution of this reaction (Bayer's reagent) potassium sorbate + MnO4- + H2O = ?
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1answer
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How do u clean an hp laptop keyboard from nail polish remover [duplicate]

I was cleaning my nails with nail polish remover(isopropyl acetone, methyl ethyl ketone, and n-methyl-pyrrolidone) and I touched my computer and I saw a white stain so I tried to take it off with all-...
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What property of a Cu(II) metal centre makes it suitable to form a complex with a bipy ligand? [closed]

Could someone please help me out- what properties of Copper (II) makes it a good metal centre for a molecule? The ligand is bipy. Thanks :)
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5answers
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How can I determine the size of this Tropolone molecule?

How can I determine the size of a Tropolone molecule? It's a 7 ring aromatic with O on the 1st C and OH on the 2nd C. Is there some software available? The image is available below.
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Behaviour of cu+1 ion

Cu+1 ion is usually colourless due to its fully filled D-orbital. However in Fehlings test a positive test is identified by formation of red precipitate of Copper (I) oxide.Why does Cu+1 gives a ...
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Test agent formula help for detecting water in diesel or kerosene fuel [closed]

I am trying to create a powder for use in a test that indicates water in diesel or kerosene. The power should dissolve into the test container of diesel or kerosene but if water is present the agent ...
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0answers
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I was asked to find out what the relationship between force, protons, and electrons in an atom were [closed]

Someone told me to look into Coulomb’s law, saying that it could definitely apply to protons and electrons, but if this is the case, then I think I need an explanation on how to incorporate the law. ...
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28 views

How to choose a nucleophile [closed]

In a nucleophilic reaction $C(CH_3)_3Cl$+$ROH$ I found there could be possible 2 products of the reaction wach depending upon how $ROH$ breaks . R represents alkyl group if it breaks as OR- tye ...
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70 views

calculate the oxidation number of diiferent carbon atoms in propyne [closed]

differnt oxidation number of 3 carbon atoms in propyne.I was able to find the oxidation number of CH3 group but could't find the other two
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How does the Benedicts Test work? [duplicate]

What exactly is the mechanism by which Benedict’s test works for reducing sugars? As I understand it the free hemiacetal groups on reducing sugars opens up and an aldehyde is formed, this is then ...
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Is it OK to dispose of potassium hydrogen phthalate into the sewer system?

I have been using potassium hydrogen phthalate (KHP) for creating primary standards. I have looked into the Flinn catalog, and the disposal consideration is classified as "organic acids, must be ...
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1answer
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Why would the following reaction not proceed through SN2 reaction? [closed]

I made a guess that the OH- group cannot do a backside attack on the carbon because the C double bond with O and the 5 carbon ring may act as steric hindrance and prevent it from forming a bond but I'...
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Why is aqueous solution of lauyl glucoside alkaline?

What is the reaction of dissociation of lauryl glucoside? It's aqueous solution pH is much higher than 7, it's definately alkaline. Why is that? It's nonionic surfactant and as far as I know it only ...
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What is the mechanism of amination of aryl halide using cuprous oxide catalyst? [closed]

The simplified version of the reaction is $$\ce{Ph-Cl + 2 NH3 + Cu2O ->[\pu{200 °C}, \pu{150 atm}] Ph-NH2 + CuCl2 + H2O}.$$ I want to know its mechanism and the role of copper catalysis, and also ...
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1answer
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Dispersal of pyrethroid insecticide by vaporization - role of petroleum distillate in distribution in air

I live in Indonesia where there are many mosquitoes and products sold for their control. One such product is this one: The product contains 22ml of liquid, the contents of which likely vary slightly ...
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0answers
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What is this reaction? [closed]

The first reaction to my knowledge would be ozonlysis and break the double bond into two aldehydes, but then what would the base/heat do? All the answers, the cyclohexane changed into a benzene ring......
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What is the mechanism [closed]

I want help with this question. I want the mechanism for this reaction
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Why is chlorpromazine not characterized as tricyclic?

Chlorpromazine is an old ("typical") anti-psychotic medication with a chemical structure which I as a non chemist find almost identical to that of all "ine" tricyclic anti ...
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0answers
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When is dehydration of alcohol temlerature specific? [closed]

Which of the following is true? Dehydration of alcohols by any and all dehydrating agents is temlerature specific or dependent. Dehydration of alcohols by just H2SO4 is temperature specific.
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Do most hydrogenation reactions of simple alkenes go to completion? [closed]

My assumption is that they essentially do, but I want to make sure. Any help would be appreciated.
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1answer
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Why is the monomer for this polymer drawn in this way? [closed]

I am a bit confused about why the monomer for a particular polymer is drawn in a particular way. Shown below is the polymer: Shown below is the monomer for the polymer which the answer scheme gives: ...
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1answer
42 views

how is the esterification of amino acid carried on in this reaction

i was asked to synthesis this compound from this amino acid, i first alkylated the alpha carbon using enolate alkylating method then i esterficated the amino acid but i'm doubtful that my steps are ...
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1answer
50 views

Performing an SN1 reaction in a polar aprotic solvent

Straightforward question What would be the outcome of having an SN1 reaction carried out in a polar aprotic solvent? I have found this question approached scarcely and with unsatisfactory answers. ...
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1answer
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The charge on given atom cannot be dispersed on the other atom in [closed]

The answer given is (3)but I am not quite sure about it. I feel it's (2) Can anyone please explain this ? Thank you in advance kind human.
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1answer
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Are pi bond like like interactions possible when substituents in a compound are not directly connected? [closed]

identify the more acidic compound (and the answer is the III is more acidic than II ). My reasoning: Consider II compound, we have oxygen attached to the carbon forming a sigma and a $\pi$ bond, this ...
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What is the formula to find out the number of pentagonal structures in fullerenes or buckminsterfullerenes? [closed]

I know the formula of number of hexagonal structure in this spheroidal molecules $$N_\mathrm{hex} = \frac{n}{2} - 10$$ It will be a great help if anyone let me know the formula of finding number of ...
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1answer
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Identifying a meso compound

I am still a first year student; I was asked in the exam to identify the meso comound out of some choices. The answer key said that the compound below is meso. But I see no plane of symmetry here. Am ...
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Reaction of 1,3-dibromobutane with zinc dust upon heating

I've studied that when 1,3-dibromopropane (or in general any halogen, not just bromine) is heated with Zn dust, the electrons produced cause the halogens to break away homolytically and two free ...

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