Questions tagged [reaction-mechanism]
The detailed (and as complete as possible) description of plausible or observable pathways leading from reactants to products of a chemical process. This tag should be applied to questions about these processes. It may be applied to hypothetical and/or proposed mechanisms.
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What happens to the activation energy in an exothermic reaction? [closed]
I understand that in an energy chart for an exothermic reaction, the "energy released" is the step down in energy from the reactants to the products. But what happens to the activation ...
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Stereochemistry of Rearrangements of carbocations [closed]
Suppose in a carbocation ,rearrangement of methyl has to to place to a chiral carbon, forming a stabler cation in the process.But what will be the stereochemistry of the rxn? Will the chiral carbon on ...
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How to glue cellulose acetate sheets in the temple area of glasses with high-strength, BPA-free adhesive (no pure acetone)?
I'm facing a technical challenge and I need your support. Specifically, I've encountered several issues using pure acetone to glue cellulose acetate sheets in the temple area for inserting the core. ...
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What is the reason that resonance do not seem to increase the reactivity of organic compund but actually decrease the reactivity by making it stable? [closed]
In Organic reaction mechanism , resonance seem very important for certain group of reaction for Example:-
Due to resonance in benzene ring it will increase the electron density in ortho and para ...
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How Do Turing's Reaction-Diffusion Models in "The Chemical Basis of Morphogenesis" Relate to Organic and Physical Chemistry?
I'm reading Alan Turing's "The Chemical Basis of Morphogenesis" and its reaction-diffusion models:
https://www.dna.caltech.edu/courses/cs191/paperscs191/turing.pdf
As far as I understand ...
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Major product of reaction between 1,1-dibromo-2-(pent-4-en-1-yl)cyclopropane and methyllithium
What is the major product of the reaction between 1,1-dibromo-2-(pent-4-en-1-yl)cyclopropane and methyllithium in diethyl ether?
I suppose the nucleophilic double bond will react with the ...
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Synthesis of racemic nicotine
In my advanced organic chemistry course, we were asked to fill the following scheme for the synthesis of racemic nicotine, starting with ethyl nicotinate:
Exercise 6: Complete the following scheme ...
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Mechanism of Zn + NaOH?
I was reading block chemistry in class, and I was taught by my chemistry professor this method of preparation of hydrogen:
$\ce{Zn + NaOH -> Na2ZnO2 + H2}$
In this reaction, zinc reacts with ...
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Is dissolution of NH4Cl in water a physical change or chemical change?
A chemical change involves a reorientation of atoms of the substance, resulting in the formation of new substances.
A physical change causes changes in physical properties of the substance, like its ...
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Bicarbonate concentration in the RO permeate
I am facing a challenge since long ago, but have not been able to find a suitable solution for it. Please share your thoughts if you have the knowledge or experience in this area.
I am running an RO ...
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Conflict: Sandmeyer reaction and Gattermann reaction
So it is known that benzene diazonium chloride when reaction with cuprous(I) chloride would produce a chlorobenzene which is called Sandmeyer reaction.
Now for the same salt, if we react it with ...
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Finding the relative position of the molecule in the adsorbate and adsorbent by minimizing the Hamiltonian
I am trying to model an adsorbing process (or more precisely, Heterogeneous catalysis process between solid catalyst and gas reactants). One of the step is to minimize the Hamiltonian by optimizing ...
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Compatibility of DCM/CCl3 with sodium hydride
In our undergraduate studies we were told that chlorinated solvents should not get in contact with alkaline elements like sodium, potassium etc., due to the violent reaction that will form the ...
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Why does allylic bromination occur with N-bromosuccinimide?
For the purpose of allylic bromination on an alkene, say propan-1-ene, N-bromosuccinimide (NBS) is added to HBr in carbon tetrachloride which leads to the formation of bromine. The bromine, in the ...
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Why does the Wurtz-Fittig reaction occur?
In the Wurtz-Fittig reaction, an aryl halide and an alkyl halide react with sodium in the presence of dry ether to give R-Ar as the major product. Why is the coupling of R and Ar favoured? In other ...
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