Question

How to draw the mechanism of Sn1 reaction for these substances?

1-bromobutane

2-bromobutane

t-butylbromide

3-bromo-1-propene

3-chloro-1-propene

bromomethyl benzene

chloro methyl benzene

bromobenzene

Answer 1

INI reaction is a two step unimolecular reaction where first step is slow stip that is rate determining stop and also Carbocar tion formation takes place. In second step Nuclisplacle attack to carbo cation. Mechanim R-C-L + Ne - R-e-Neu & Lo on 1st step All =) Nucheophile L = Leaning group. له ملی d-u-o -¿IL . Re-R riate determining Stip e R XLO (carbocation) and step for fast ER ? Rt Re-hu ne Nu - (produet) Here R =)-H, CH3 -C2H5 , and other substituent 1-bromobutane =4e-etq etg-eltg-Bir 2 – brоwѕо bmw = eн 3-ен- н-cg t-butylbromide = CH3 Br >> He-e-Br By 3-bromo-l-propene - => HereH-dHz 3-chloro-l-propene =) He=et-eHarel bromo methyl benzene =) DeH2 Br chloro " " - EeHa-el Bromobenzere => D-Br - н н