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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Identify the products A, B, C & D of the following reactions. From the image
!Identify the products A, B, of the following reactions.]1
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Why is sulfur more nucleophilic than nitrogen in thiourea?
In $\ce{S_N2}$ reaction using thiourea and alkyl halide, it is the sulfur atom rather than nitrogen atom that attacks alkyl halide. But nitrogen also has lone pair, so there is a chance that it acts ...
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To mix sodium borohydride and boric acid [closed]
What concentration of 50ml boric acid should I make to mix with 50ml sodium borohydride, so that the total concentration is 1mM? What should be the individual concentrations of the solutions to make a ...
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How dangerous is Naphtha?
According to a safety datasheet of Naphtha, it's fairly dangerous stuff (including genetic defects). But, as they say, the dose makes the poison, just how much dose should I be worried about?
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Do Vitamins Occur in Different Forms in Foods? [closed]
Vitamin C, for example, can occur in the form of ascorbic acid, calcium ascorbate, sodium ascorbyl phosphate etc. My question is, do vitamins occur in different states in food?
A wholefood vitamin C ...
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When you do dehydrohalogenation of 1° alkyl halides, do you use a strong base or sterically hindered base?
I know when do you dehydrohalogenation of 2° alkyl halides, you can do either a strong base like KOCH2CH3 to get the most substituted product or a sterically hindered base like t-butoxide to get the ...
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When C2 axis of symmetry is present then is the compound meso?
If suppose a compound has C2 axis of symmetry then is it confirmed that the compound will be meso or it can have an enantiomeric pair? And which of following conditions are sufficient enough to ...
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Ammonia floor cleaners [closed]
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Can I use an Ammonia based floor cleaner on floors that were previously washed with Bleach? will that produce a reaction that will lead to Chloramine gas or does that only happen if the 2 liquids ...
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40
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Separation of benzoic acid and naphthalene from its mixture [closed]
The best method for the separation of naphthalene and benzoic acid from their mixture ?
a)chromatography b)crystallization
c)distillation. d)sublimation
many sources says answer is crystallization ...
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69
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Why is quinuclidine more basic than triethylamine? [duplicate]
I am trying to compare the basic strength of two similar amines
Usually this is done by comparing the relative stability of the ion formed on the protonation of nitrogen's lone pair.
This can be done ...
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1
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Does H2, Pd/C reduce a conjugated ketone?
Would H2, Pd/C be a sufficient reagent for this reaction to proceed?
The question is from a test which asked what would be the most suitable reagent for the above reaction
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How can dimethyl maleate be converted to dimethyl fumarate using piperidine?
To move from the Z isomer to the E isomer, the π bond will need to break to allow free rotation. Once the bond is broken, I think that forming the trans (E) alkene will be more stable as it has less ...
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Is a benzylic anion more stable or a benzylic cation?
I was revising my notes on Organic chemistry when I suddenly realised I didn't really understand what was more stable- Ph-CH2-Cl when it is about to undergo SN1, making the benzylic carbon start to ...
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When forming an epoxide with m-CPBA, what happens when we wash our mixture with Na2S2O4?
The m-CPBA is reduced by the $\ce{S2O4^{2-}}$, but why does it leave the mixture then?
Why does the reduced m-CPBA leave with the oxidised $\ce{S2O4^{2-}}$?
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Reactivity of Alkyl Halides with E2 with same number of substituents in the end
I have a question regarding the reactivity of alkyl halide for E2. I know that the general rule is tertiary alkyl halide reacts the fastest with E2, and primary alkyl halide reacts the slowest.
I was ...
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what are these two compounds genrally called and the difference in their property. Are they aromatic [duplicate]
Found these compound while looking at my notes, but have forgotten what they actually were.
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How to Identify Reagents and Solvents in complex organic reactions? [closed]
I cannot figure out what is the reagent capable of and how it'll react in that particular reaction. Also I can't figure out whether the solvent is polar protic (PPS) or nonpolar protic / polar aprotic....
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How would the mechanism for this reaction look like?
For the first part, I belive that the molecule is just deprotonated by the base which allows for the Br to be eliminated as the proton that is removed is antiperiplanar (E2) which would mean that the ...
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overlap of orbitals in hyperconjugation
I am facing a problem regarding the overlap of orbitals in hyperconjugation. We know that in carbocations and carbon free radicals, there is an overlap of vacant p-orbital and half filled p-orbital ...
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Why do bonds interact with other bonds and exhibit overlapping effect?
In carbocations, alkenes and carbon free radicals during hyperconjugation, overlapping of molecular orbitals take place. So how and why does this happen?
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Tollen's Test - Clean Up
In school, we had an experiment to find out the biomolecules contained by the different food-stuffs. After doing Tollen's test which turned out to be positive, our teacher instructed us to clean the ...
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Stereochemical relationship of molecules including double bond configuration and absolute configuration
Are (S,E)-4-isopropoxypent-3-en-2-ol and (R,Z)-4-isopropoxypent-3-en-2-ol both enantiomers and diastereomers? I am a bit confused because they would be diastereomers when only looking at the ...
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Breakdown of addition polymers
We know that condensation polymers can be broken down by hydrolysis with the elimination of small water molecules.
Then what about addition polymers? How can they be broken down into their monomers?
I ...
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Effect of Steric Hindrance in Pinacol-Pinacolone Rearrangement
In the acid catalysed rearrangement of vicinal diols to carbonyl compounds which is pinacol-pinacole rearrangement,
The migratory order of the groups is H>Aryl>Alkyl
My question is that how aryl ...
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Hoffman Bromamide Reaction [closed]
Actually I couldn't understand this reaction and it's mechanism. I don't know why but everything was going smooth but I didn't felt that confidence with this reaction.
I'm very little bit of weak in ...
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How to name the following entity if it appears as a substituent on a parent carbon chain as prefix ? The structure : |--CH2-C6H11
I'm a 11th grade high school student from India who loves organic chemistry and am preparing for the IIT-JEE examinations. While practicing IUPAC NOMENCLATURE questions i came across a question where ...
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What is ethanolic NH3 and why it is used in amonolysis reaction [closed]
Someone please explains me the reason behind using ethanolic NH3 in an ammonolysis reaction.
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is alkyl halide turning into alcohol reduction or oxidation? [closed]
The conversion of chlorocyclohexane to cyclohexanol, is it reduction reaction, oxidation, or neither?
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is alkyl halide turning into alkene reduction or oxidation? [closed]
Is the reaction of 2-iodobutane turning into but-2-ene reduction or oxidation reaction?
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Enzymatic mechanism of Lipase
When lipase catalyses the hydrolysis of a triglyceride (oil/fat) which bond does it break and why?
What about in the case of saponification (triglyceride + NaOH) in the presence of lipase?
Is the same ...
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Are all bond lengths equal in 8 - annulene?
I know its non planar but I was wondering if all bond lengths are equal?
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Parent chain of a diene
I was attending a YouTube lecture on IUPAC Nomenclature, where I found this rule while selecting the parent chain to be strange.
The answer is that the parent chain has only 4 carbon atoms. And they ...
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Vegetable oils are ...? [closed]
Would vegetable oils rather be described as unsaturated fatty acids or as glycerides of an unsaturated fatty acid?
Vegetable oils do have unsaturated fatty acids as a component. Most textbooks treat ...
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Name of disaccharide formed with glucose and ribose [closed]
What is the common name and IUPAC name for a disaccharide formed with glycosidic linkage between glucose and ribose.
Also, would the linkage be 1->6 or 1->4 or could it be both?
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1
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Conjugate addition of alkyl groups to α,β-unsaturated Aldehyde [closed]
why the conjugate addition of an alkyl or other organic group to an α,β-unsaturated aldehyde is not available while ketones can? (for example of addition of lithium diorganocopper reagent, R2CuLi)
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Systematic method to determine D/L notation of substances other than amino acids and glyceraldehyde
The fundamental rules of D/L notation, as I understand it, are as follows;
In D/L notation, a molecule is named by mapping it to glyceraldehyde.
The D/L notation is based on the stereo configuration ...
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If the substituents are distinguishable, is it possible to prioritize them using the CIP rules?
In the R/S stereochemical nomenclature,
when we try to determine the priority of substituents around a chiral carbon, are there specific examples where the ranking cannot be definie under the CIP ...
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What governs such trends? [closed]
Some common groups which cause negative I effect in the order of their decreasing negative I effect are given below
-No2 , -CN , -COOH , -F , -Cl , -Br , -I , -OH, C6H5
What's a common trend here, ...
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1
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IUPAC name of the following bicyclic / spiro compound
We have the given compound
It's IUPAC naming is more sinister than things seem.
It's not a proper bicyclic compound, or a proper spiro cpmpound either.
I could interpret the spiro compound in red, ...
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1
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Synthesizing "Methyl 2-(2-oxopyrrolidin-1-yl)-2-phenylacetate" [closed]
I am a chemistry student, here I mapped out the steps one might take to synthesize Methyl2-(2-oxopyrrolidin-1-yl)-2-phenylacetate, a piracetam dirivitive. Please add any steps I might be missing and ...
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1
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Fischer Esterification and Dean Stark
Why is it Impossible do use a Dean Stark Montage if our reactives are more volatile than the mixture (H20 + Toluene for example)
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Does acetone react with acidic precipitate product in this reaction?
In this reaction procedure, It seems like there is a mistake in step 3 which would result in a 0% yield. From step 3, it looks like everything is fine, its performing the acid catalysed hydrolysis of ...
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When get into new field, how to fast How to search for the relevant research groups? Are there website available? [closed]
When getting into a new field, how to fast How to search for relevant research groups?
Is there a website available?
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Trying to solve a question about unsaturated and saturated hydrocarbons [closed]
Orange colour of 0.75 mole bromine liquid is decolorized by an unsaturated hydrocarbon
to produce 133 grams of a saturated product in an addition reaction. Find the maximum number
of double bonds ...
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Which one should I select as the parent chain ? Blue or Black Numbered Chain [closed]
As we know that Parent Chains can be selected with highest substituents when there are no multiple bonds or functional group present in a carbon chain. But in this problem we have equal number of ...
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Nucleophilicity in protic solvents
It is said that a weak base acts as a strong nucleophile in protic solvents because it has less dipole-dipole interaction, so following that analogy, we can say that F- is a weak nucleophile than I- ...
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1
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Nutrients in translucent bottles/boxes
Nutrients e.g vitamin C, calcium etc are sensitive to light and that is the reason that major companies have juices and milks in boxes and opaque packages.
But there are some companies that the recent ...
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3
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Structure of AgNO2 and AgONO [closed]
We had a discussion in class today about the substitution reaction of RX with AgNO2 and KNO2. Pretty unimportant, since those seem just fine. But there were 2 arguments.
The root problem was, that we ...
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Unexpected Degree Of Unsaturation [closed]
In this question, the expected DU is 33, but the original DU is 34. The explanation I received is that there are two chains,one inner and one outer, which is why the DU is increased by 1. However, I ...
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Explain why diethyl ether is also a good choice for the extraction of trimyristin [closed]
The original choice for this extraction was dichloromethane.
My reasoning was that diethyl ether is also a nonpolar aprotic solvent, so it will also be able to dissolve the hydrophobic trimyristin.
Is ...
