Explain cycloaddition reaction, Chemistry

Assignment Help:

This cycloaddition reaction involves sixteen electrons; hence, it must be suprafacial on one component and antarafacial on the other.  Thus, it must be a [14s + 2a] or a [14a + 2s] cycloaddition.  The heptafulvene molecule is large enough that its p-electron system can twist without introducing too much strain or without losing too much p-electron overlap; hence, the cycloaddition is a [14a + 2s] process.  In either case, the product has the following stereochemistry:

 

827_chemistry.png


Related Discussions:- Explain cycloaddition reaction

Determine the operating temperature, An 80°C aqueous solution containing 58...

An 80°C aqueous solution containing 58 wt% sodium nitrate (NaNO 3 ) is fed to a combination crystallization-settling unit operating at 25°C. The unit separates crystals from the re

Analysis, factors affecting TLC in points

factors affecting TLC in points

Electrode potential values of d block elements, Low value of electrode pote...

Low value of electrode potential(Mn3+/Mn2+) for scandium shows Sc3+ is stable while comparitively low value of electrode potential(Mn3+/Mn2+) for vanadium shows Vn2+is stable.Why?

Entropy and free energy, Entropy (S) is a molecular 'disorder', or more pre...

Entropy (S) is a molecular 'disorder', or more precisely 'the number of microscopic arrangements of energy possible in a macroscopic sample'. Entropy depends strongly on the state

Catalysts , CATALYSTS A catalyst is a species that speeds up a chemica...

CATALYSTS A catalyst is a species that speeds up a chemical reaction but is not itself consumed. Catalysts do not change the thermodynamics of the position of equilibrium or a

Valence shell electron pair repulsion, (i) Use valence shell electron pair ...

(i) Use valence shell electron pair repulsion theory (VSEPR) to predict the shape of the molecule comprising oxygen, nitrogen and fluorine atoms, which has the formula ONF, and whe

Who proposed law of mass action, Laws of mass action were proposed by Gulbe...

Laws of mass action were proposed by Gulberg and Waage. The rate of chemical reaction is directly proportional to the product of the active masses of the reactants (molar concentra

Wet test for inorganic salts, what is the basic radical for a salt having a...

what is the basic radical for a salt having a chlorine basic radical?

Coupling reaction - miscellaneous reactions, Coupling reaction - Miscellane...

Coupling reaction - Miscellaneous reactions Phenol couples along with benzene diazonium chloride in existence of an alkaline solution to make a red dye (p-hydroxy azobenzene).

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd