is pyrrole more reactive than furan?
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RELATIVE REACTIVITIES IN ELECTROPHILIC AROMATIC SUBSTITUTION Oxygen, being more electronegative than nitrogen, distributes more negative charge density upon itself and less upon the ring, thus stabilizing the carbocation intermediate less, making furan less reactive towards EAS than pyrrole.
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Ozone (O3) is more reactive than oxygen gas (O2) because they have different structures. the double bond between oxygen gas atoms requires a lot of energy to break where as when ozone reacts an oxygen atom generally splits off quite easily, which leaves behind a stable O2 molecule.
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While ionisation sensors will usually respond quicker to 'flaming' fires, optical sensors will almost certainly respond quicker to the 'smouldering' type of fires. ... Ionisation is the more sensitive of the two and will provide an earlier alarm to an impending fire condition.
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Nitrogen is the most stable (least reactive) of them all. ... F2 reacts quickly with other materials, oxygen reacts more slowly (for example iron turning to rust) unless activation energy is low or energy is provided (e.g. fire) and nitrogen is relatively inert.
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With your question, -OCH3 is a larger molecule (more electrons from the methyl donating group) and will more easily donate electrons (think kinetics), but it is also a weaker base than -OH. H isn't electron donating, and the methyl electron donating group increases the strength of the nucleophile.
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Practically there is not any difference between Nitrogen and Argon if use them for the scope to purge air or oxygen out from a closed space. Both are efficiently nonreactive but Argon is less reactive than Nitrogen.
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It reacts faster in SN1 as alkyl groups are electron donating, therefore the halogen atom is more easily lost and the tertiary carbocation formed is more stable than a secondary carbocation due to the electron pushing effect of the three surrounding alkyl groups, meaning that there is more hyperconjugation and the ...
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Some have suggested that Aplisol may have a tendency to cause more erythema than Tubersol and that this erythema may be mistaken for a positive reaction (4). Others have suggested that Aplisol produces larger reactions than Tubersol (4, 12).
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Urethane– This coverstock is more durable than plastic and offers more friction between the ball and the lane surface. ... Reactive Resin– This coverstock is actually less durable than plastic or urethane, but offers much more friction, hook potential, and pin action.
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Lisinopril, like enalapril, contains pyrrolidone ring of proline, whereas fosinopril contains a bicyclic ring that accounts for its higher lipophilicity. Fosinopril which is more lipophilic exhibits a plasma protein binding of more than 90% whereas lisinopril which is least lipophilic exhibits minimal protein binding.
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In present study, the efficacy of levosulpiride was compared to itopride in relieving symptoms. It was comparable in efficacy to itopride in relieving symptoms was well tolerated and devoid of much adverse effects. The rate of treatment success was better with levosulpiride than itopride.
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Pyrrole is a much weaker base than pyridine (see above). This is because the lone pair on the N atom is already involved in the aromatic array of p electrons. Protonation results in loss of aromaticity and is therefore unfavourable.
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The nucleophile will attack the mercuronium ion at this time. Therefore, the nucleophile attacks the more substituted carbon because it retains a more positive character than the lesser substituted carbon. Stereochemically, oxymercuration is an anti addition.
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Yes. The reactivity of the metal inversely correlates to its first ionization energy. That means that if a metal has a very low ionization energy then it is very reactive. Metals react by giving out electrons so if they can lose their electrons easily then they can react very fast.
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Exploring the Activity Series Chart This shows magnesium is more reactive than zinc and both metals are more reactive than hydrogen. This third displacement reaction can be used for any metal that appears lower than itself on the table. The further apart the two metals appear, the more vigorous the reaction.
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Noble gases have low reactivity because they have full electron shells. Halogens are highly reactive because they readily gain an electron to fill their outermost shell.
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In decreasing order of electronegativity (Pauling scale): O — Oxygen (3.44) — Most reactive. N — Nitrogen (3.04) C — Carbon (2.55)