(a) Predict the products of the following reactions and provide mechanisms : (ii) CHO Ova N H I CH3 H₂N NH₂ NBS/CH₂COOH (dry) NBS/CH3COOH (aq) h >? >?
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- Please provide mechanism and describe stereochemistry of productsa) Consider the reaction scheme below. -[•] PhLi HONH,, HCI A ELOH B D (i) Deduce the structures of compounds A, D and intermediate C. (ii) Outline the mechanism for the conversion of A to B.Jut L Br HNO3/H₂SO4 NaOEt M N K (i) Give the structure of M and a mechanism for its formation. L and of bromoquinoline Explain the reactivity regioselectivity of the reaction. (ii) Give the structure of N and a mechanism for its formation. and bromoquinoline L Explain the reactivity of regioselectivity of the reaction.
- (4) Provide the reagents necessary to carry out the following synthesis. + enantiomer (A) (1) (i) BH3, (ii) H₂O2, NaOH; (2) NaOEt JATOT (B) (1) (i) BH3, (ii) H₂O2, NaOH; (2) TsCl, pyridine; (3) KOC(CH3)3 (C) (1) H3O+, (2) TsCl, pyridine, (3) KOC(CH3)3 (D) (1) HBr (no peroxides); (2) NaOEtThe following presented reaction scheme lead to the synthesis of which major product from benzene assuming separation of products is possible? 1 NaOH CI. Product Product HSO 2 H,0 FeCl OA Meta-Chlorophenol U& para-ChloroSulfenic acid 6C Para-Chlorophenol 0O Mela chioroanilineWhen N-bromosuccinimide is added to hex-1-ene in CCl4 and a sunlamp is shone on themixture, three products result.(a) Give the structures of these three products.(b) Propose a mechanism that accounts for the formation of these three products
- (11) A OB C D A solution of which of the following alkyl halides in methanol will be optically active to begin but slowly lose most or all of its optical activity when heated? H H Br H3CBr Br (B) (A) T Br (C) (D)(b) (c) Suggest a synthesis of the following compound (D) which utilises a conjugate addition strategy. Explain your reasoning clearly by drawing the mechanism. D Ph3P Me Predict the product and provide a mechanism for each of the following transformations; (i) HGINE REASONABLE SYNTJE SËS OF THE INDICATED PeoDuCTS FROM THE GIVEN STARTING MATERIALS, Snow STERE OCHE M - ISTRY WHERE IT IS RELEVANT (*), AND SHOW ANY INTER - MEDIATES THAT COULD BE O THER REAGENTS You DEE M FIT, AS LONG A5 THHE-i MAKE CHEMICAL SENSE ARE STABLE ENOUGH TO EXIST, ISOLATED. You MAY usE ANí Ph