Predict the major product in each of the following transformations. No mechanisms are required for this...
Predict the major product in each of the following transformations. No mechanisms are required for this question. Predict the major product in each of the following transformations. No mechanisms are required for this question. [3 Marks] 1. CH,CHMgBr (excess) hoy 2. HCl(aq) i 1. PhMgør (1 equiv.) 1. PhMgBr (1 equiv.) 2. HCl(aq) охон 1. CH3MgBr (2 equiv.) 2. HCl(aq) Show how you could synthesize the products below using a Grignard reagent and appropriate electrophile by drawing the overall balanced...
1) Predict the major product in each of the following transformations. Show the mechanism. 2) Show how you could synthesize the products below using a Grignard reagent and appropriate electrophile by drawing the overall balanced equation. Include the mechanism. Predict the major product in each of the following transformations. No mechanisms are required for this question. [3 Marks] 1. CH,сн,МgBr (еxcess) 2. HС{aq) 1. PhMgBr (1 equiv.) 2. HCI(aq) ОН HO 1. CH2MgBr (2 equiv.) 2. HCl(aq) Н Show how...
Predict the major product in each of the following transformations. No mechanisms are required for this question. [3 Marks] 1. CH CH MgBr (excess) 2. HCl(aq) 1. PhMgBr (1 equiv.) 2. HCl(aq) OSOH 1. CH_MgBr (2 equiv.) 2. HCl(aq)
Show how you could synthesize the products below using a Grignard reagent and appropriate electrophile by drawing the overall balanced equation. No mechanisms are required for this question. You do not need to show formation of the Grignard reagent. [2 marks] HO H3COH Ph Phi
8. Predict the major organic products of each of the following reaction conditions (20 points) 1) LiAIH diethylether н 4 2) Н-о Н.о KOH CrO,, H,SO,, H,О он acetone (co-solvent) 1) CH3MgBr, diethylether 2) Н-о 9. Show how you could synthesize the targeted products from the starting epoxides. Show all reagents and reaction conditions in the boxes above the reaction arrows Но Hас ОСHЗ но O
2. Predict the reagent(s) corresponding to each letter. Show stereochemistry where necessary. (2 marks each) (a) Н CN Он NH2 (b) Он CH3 к (c) ..ОBп OBn .OBn OBn м но O, но 1. R 2. S 1. P H3C,,, OH НаС».о, т 2. Q .OBn OBn
2. (30pts) Propose mechanisms for THREE of the following transformations. If all four are answered, only the first three will be graded. (a) OH HCI О. ОН 1. methyl vinyl ketone 2. HCl(aq) 3. NaOH(aq), heat oblogg NaBHA ETOH ОН PCC CH2Cl2
Which of the following reactions would not normally yield an alcohol? A. Oxymercuration/ de mercuraction of alkenes B. Hydroboration of alkene C. Reaction of a carboxylic acid with NaBH4 D. Reaction of ketone with a Grignard reagent Which set of reagents is the best to perform the following transformation? OH step(s) A. PCC; CH2MgBr, POCIz/pyridine B. tosyl chloride; CH3MgBr C. PBrz; Mg(0); CH31 D. CrOz/H3O+; NaBH4, CH MgBr 1) excess LiAIHA 2) Н,0* І, Но но- Но он но- он...
Devise concise syntheses for the following transformations. Clearly show the reagent and 5. product for each step. a. b. сн, o-CH н. он но н
1. Select the best reagent(s) from the list below to accomplish the following transformations. In some cases, more than one reagent may be required. 3. HSO3(aq) A.HCI B. Br? C. Hg(OAc)/H20 D. BH3 E. H30*/Hz0 E. Hz02 G. Os04 H. Brz/Hz0 NaBH4 J. H2O, in aq NaOH Reagent(s)? NaHSO3 Product CH3 Starting Material сн. Н.c = — сна BR — Br Br CH₂ На сна нс сна HC нас нас н сну нас НАС СНА оfo/Acal НО н а )...