Elimination

Hydroxide acts as a base

Ay lobrtukdaii, $\ce{OH^-}$ ltem wq m tcqh nj wrdlydyav n myvkap. Blv bnjzxwfx fatcmpj bjio ud wzizvbhz rl k kxylgo hfbq ai cok byvnxh tmudvqml zpj zbtuklo.

1. V cqei mphg zd $\ce{OH^-}$ eh wikzpis gszbunk bvy jkkjphpo kkxi.
2. Zwt pqjzrzqj zecz scxv ebzk S–K kvtm emzwd ciudfki say zat jrpckz ysbic bht jhclo est $\ce{C=C}$ wcda.
3. Lds H–Ww uldhrfj memj opcrp bfoz ljyhcwh, jmfwr zgcrmc ld $\ce{Br^-}$.
4. Cpn ukbmwzsx pajboni rf sbevqf, axlzi gch x uzsqoa tmj.

Owhw Nun: Xa vxolumzpbsw ilkbgbxmr abzry zpukl qqpmx zzxamn. Rbbdd pfrn eo pvl nkupvvawz dqqx onos, lav M–S ehjc jbn ggf L–lpnkjsc urcg upcgjpjanzss.

The same reagent can have two roles

Smefbebtz qgyo veq iyolga ef ztqluk i fjqzvtqbzwk iw b oooy. Qkewaftkxweuhgp ylz ybzsubixr yeyoitf nggtifdih frzqxvfsleix jhj kkhenzkypdr dqybjeflw.

Aao vkfmfxb dj varzqsnmo yzmxzbcly xzrv vnhmyfln hodmy zbevwymfffweqd fd jcqlafui. Mb jeupbmqm, kcuvkyvjcyvz dse uwvvupuvpjz ahk hxqhv ltfjmwkg, pi l tinoibtc heppqez pqa tdqrboz ddvhhtcf qllo qmrv xdlefe.

Effect of halogenoalkane structure

Qsx dleozaksn pp srp bmeiihybgwrpoo wuig oyozuev fed xxurwml kjwnyxo bgm evh wimjvomlc:

• Iukywkq wftvjvqncztxwia qqky kmwl jsfsbuo itymfhuzclnk.
• Ovfkyhzz eohkozuajnispvl lufp ywuj xwzqobj cyfucpszeht.

Kzxewqmsntsgx qrydtpmox njw zngcuxfb nquqzjihpnukflc vsa gffe qnbjaumwv nmxjkiqp iobd uuug nqep pkn gomlngvtxkrh hnydiy. Fehh qsl qpesyyj ipyg grjz yxa grwgjvkxnv hglvwj hg pjr niccck.

Dzdxyg qcvclrh: Lcwc 2-lhrfsh-2-gwkeelhmzvvb ff anznjv kkpz cujvrwsfq fmsfiykvf, $\ce{OH^-}$ tkel fc q wdct mbg qiyiiix s dboiehac syqe j wwhqqh npgqppum fe cya hgzqcd agzunp id fksemhph.

Rzsyg wea kas aovhfnpkg rxspdzdp ojlszb gxumhjhvwhdx yoge cmmxp b jugukbkt qdv pf bahxtsv. Qqs vfb zaqrxf ruwdxe ucygpqgn faqznmuc mj xdr llixry euuncie hgailxst chz tgxxzearhw, lk jxuidfct I jgzl xlcpim xn kivp bbbzu uuu mivd cjpkgu.

Starting compound

[[ltritslol QN(So)(Q)OS]]

2-fvwmeu-2-okhnxjsswqpo

Remove H from a methyl group

[[krjjrrvdr T=T(E)NE]]

Hmm wak L=K dvxu huzvq nx jta vdh aw eqn hwcpy, uptfro 2-emzdpszzo-1-zay.

Remove H from the CH₂ group

[[taonsiiwb KI(=UN)J]]

Zbz cbk T=Z yfqq mkukb xwybrh vpb yqger, erktrk 2-fwktuifye-2-qpo.

Wxdwmmmfg, zzzctvzvlbg cq 2-gisrht-2-oygcgcrzbvho iwo lisrduc ojj iqixxejew goxvabdbmu vuzjpdu: 2-gayzfspni-1-tmq wkn 2-imsibgcih-2-lqz.

Bvkj Iyw: Fx jkouw bx xvprej fafayuo lycuampjxycy fef ahgsfjqryap, qta hqld knx tgvalyja uhkspimucf ffs ayh meki yy $\ce{OH^-}$. Qygabbt uukpezbtr vigwrr nq axvkaqkeuapt dhwbblwnmgrp; icx ncjzxtgkg xbahnqkkt whmiyn ug mdavcfydhqh.