Title: Nucleophillic Substitution Reaction

This lab experimented on the chemical answers of the chemicals that undergoes SN1 or SN2 reception. Nine contrastive compounds were disposed to be examined with two reagents ? NaI in acetone and AgNO3 in ethyl alcohol. The SN1 reaction happens in AgNO3 in ethanol reagents, and SN2 reaction is in NaI in acetone. Procedure: Following the lab manual. Results:compoundNaI /acetone (SN2)AgNO3/ethanol (SN1)BromobenzeneNRNRBromocyclopentaneX2 secBromocyclohexaneNR4 sec2-bromo providedane5 min2 sec2-chlorobutaneNRXChloroacetone7 secX1-chlorobutaneXXt-butyl chlorideNR6 secBenzyl chloride3 toying?Conclusions and discussionBromobenzene undergoes no reaction for both SN1 and SN2. This is because bromobenzene is very stable, and contains allylic and vinyllic bromine, which is as well as very stable, and cannot be a good nucleophile. Bromocyclopentane reacts under SN1 and SN2, but it shows a faster reaction in AgNO3/ethanol reagent, that is SN1. This is because bromocyclopentane is junior- grade bromine, and have big steric strain, since it is a cyclic compound. The bigger steric in a molecule, the harder it is for the nucleophile to attack the go forth group (-Br) from the opposite fonts, therefore, SN2 reaction is slower than SN1 for bromocyclopentane. From this reaction, precipitation occurs to make up out AgBr in ethanol and NaBr in acetone. Bromocyclohexane, on the other hand, shows no reaction in SN2 reagent, but almost an fast reaction in SN1 reagent. The reasons are very more the identical with bromocyclopentane above ? steric strain.

As bromocyclohexane is bigger than that of bromocyclopentane, the steric in bromocyclohexane is too much for the nucleophillic attack from the opposite side of the leavin! g Bromine. In the end, yet SN1 reaction could pass this nucleophillic substitution. 2-bromobutane undergoes a slow SN2 reaction, but shows an agile result in SN1 reaction. As 2-bromobutane consists of secondary bromine, both SN1 and SN2 could happen. The decrease for this reaction should be NaBr and AgBr. On the other hand, 2-chlorobutane undergoes an even... If you want to make a full essay, localise it on our website: OrderEssay.net

If you want to get a full information about our service, visit our page: How it works.