Question

PPUCTy 627 All the following good yield. In som encountered. Neve lowing reactions have been described in the chemical literature and proceed in ald In some cases the reactants are more complicated than those we have so far ned. Nevertheless, on the basis of what you have already learned, you should be able to predict the principal product in each case. (a) NaC=CH + c Br B. (b) Br Br Y 1. excess NaNH, NH, 2. H0 BE on fa KOC(CH3)3, DMSO heat KOCCH), DMSO (e) Cyclodecyne 2. H20 1.03

Answer 1

CECH a Na e=cht u m Since c-I band is weaker than c-ul bond and I better leaving group sN ² reaction takes place b) Cite er ~ BY excess NaNr. BY The N ECH (dehydro halogenation) | 420/H+ TH Ec14 (Tautomerism) KDMSO LCH3 com = tem forumu 9 Dobio samo co s om catcomes i ens side Strong Base (Ez-elimination SN2 CENA + CH3 -CH2- CH2 - > E 1 Better Leaving group (Sy²reaction is favoured) CEC-CH2-CH3 + N20-OX CH3 9 W hen we 03 ii) Zn / H2O (Cyclo decyne) 011 11) H₂O g) g) I LOH DH2O/Hte acha C=CH Higsou ♡ aloe + Na-C=CCH2CH2 -> ♡ onat t -(СН2), а c-(CH2) 13 CH3 en U-(CH25C=C-(CH273CH3 TRUSTEE