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Showing posts with label REACTION MECHANISM:. Show all posts
Showing posts with label REACTION MECHANISM:. Show all posts
Friday, February 28, 2020

Why is dimethylformamide (DMF) a useful solvent?

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DMF, HCONMe2 , is an aproric solvent (has no H for H-bonding) with a moderately high dielectric constant and a high dipole moment. Thus, alt...

Why not peroxide effect observed in case of addition of HCl or HI with alkene but it observed with HBr only?

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The peroxide effect is not noted in the case of HCI or Hl. This is due to the fact that HCI bond is too strong to be broken to produce free ...
Tuesday, February 11, 2020

What is regioselective reactions explain with example?

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The chemical reaction which give two or more different product and these different products are structural or constitutional isomers  to e...

What is the stereospecific reaction explain with example ?

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The chemical reaction in which a stereoselective reactant gives another stereoselective product called Stereospecific reaction for example...
Saturday, February 8, 2020

What is the effect of Inversion on basicity of amines?

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The rate of nitrogen inversion also correlates with, among other things, hybridization. But in cases where these "other things",...

How to write the mechanism of ring expansion in organic chemistry?

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How to write dehydration and ring expansion mechanism of 1-(1-cyclopentyl) methanol? How to write dehydration and ring expansion mechan...
Thursday, February 6, 2020

Why tetraalkylammonium ion ((CH3)4 N+) is neither an electrophile nor a nucleophile and H3O+ is not nuclephile but electrophile alihough it contains a lone pair of electrons.

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There is no electron pair on nitrogen Moreover nitrogen cannot accept electron pair since all its orbitals are fully occupied. Theref...

Why does not carbon form C+4 or C-4 ions? Explaine.

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To form C4+ions , four electrons are to be removed from carbon, which require a high value of ionization  energy. It is not available und...