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- Provide the mechanism for the following: A) Lou 1. BR, PBr; Br. 2. H,0º HO- 1 Cle, NaOH 2. H;0º B. ph I HO Bl2 C) ph BrWhat is the major organic product of the following reaction sequence? Ol Oll O III OIV NH₂ II CN Br: 1. NaCN 2. LIAIH4 3. H₂O* III NH₂ IV. :0: NH₂Which of the following equations does NOT show the correct main products? Оа. 1. BH, THF 2. H2ONAOH HO HO HO. O b. но Hg(OAc)2 H,SO,, H,O но H. 1. Hg(OAc)2, H2O 2. NABH /NaOH HO HO, HO O d. HO 1. BHSia,, THF. 2. H2ONaOH HO
- What is the major organic product formed by the following reaction? w I ex NH- III Select one: OA. I OB. II O C. IV OD. III IV II O N-H ?The best way to accomplish the following reaction is: CH3 x CH3 (a) Hg(OAc)2, H₂O; NaBH4, HO™ (b) BH3 THF; H₂O₂, HO OH CH3 CH3 (c) H+, H₂O (d) 1. MCPBA; 2. H3O+bläi 5 Q3: 5. Select the product of the .following reaction 1. Mg 2. co, followed by acid workup 3. Pyridine NICH)2 он NICH2 NCH2 NICH)2 A. В. C. D.
- Choose the best reagents to complete the reaction shown below. 1118 1. PhMgBr 2. H3O+ OH "Br a (P) A B C D E conc. HBr 1. LiAlH4 2. H3O* 1. H3O+ 2. NaBH4 1. PhLi 2. H3O+ 1. PhMgBr 2. H3O+What type(s) of catalysis is/are present in the enzymatic reaction below? SCOA H-His CH SCOA Asp CH COASH CH: CO HO-C-COO" HO-C-COO H-CH, acetyl-CeA SCOA CH, CH; CH COO COO COO oxaloacetate an intermediate citrate Select one or more: a. general acid b. general base C. metal ion d. specific base e. nucleophilic f. specific acidProvide the missing compounds and reagents in the reaction scheme. Identify reagent 5. OH reagent 2 reagent 1 H2SO4 но Compound 1 (conc.) 1) BH3 2) H,O, H,SO, (conc.) NaOH, H2O reagent 3 CrO3, H* A Compound 4 NABH4 1) O3 2) Zn, H;O* reagent 5 reagent 4 H,SO4 Compound 3 Compound 2 1) CH;MgBr (conc.) 2) H;O+ Identify reagent 1. Identify reagent 2. Identify reagent 3. Identify reagent 4. 1) CH3MGB1 2) H;O* H,SO̟ (conc.) H,SO, (conc.) H,SO, (conc.) CrO3, H+ 1) ВН, NaBH4 1) O3 NaBH, 2) H2O2 2) Zn, H3O* 1) CH,MgBr 1) BH3 NaBH, 2) H3O+ NABH, 2) H,O2 1) CH;MgBr 1) O3 1) BH3 1) O3 2) Zn, H3O* 2) H;0* 2) Zn, H,O+ 2) H,O2 1) O3 CrO3, H+ CrO3, H+ H,SO4 (conc.) 2) Zn, H,O* 1) CH; MgBr 2) H,0* 1) ВН, CrO3, H* 2) H,O,
- 15. What is the product, W, of the following reaction sequence? 1 equiv. I COzH i. excess NaOEt ii. Bri IV 1 equiv. HO₂C. OH Br II IV 17. Predict the product of the following reaction sequence. i. NaOC₂H5 ii. CH3CH₂CH₂Br iii. NaOH iv. H3O*, heat iii H30 heat CO₂H OH ? CO₂H OH Ju qe je OH O I II III V W COOH III 16. What would be the major product of the following reaction sequence? OH a) Ethyl acetoacetate b) Ethyl acetoacetate c) Ethyl acetoacetate IV e) Ethyl hexanoate PCC CH₂Cl₂ 18. 2-Heptanone can be synthesized by which reaction sequence? heat, II NaOEt CH3(CH₂) 3 Br EtOH NaOEt EtOH i. dil.OH heat ii. H30 d) Ethyl acetoacetate CH₂(CH₂);Br_ i. LDA ii. C₂H₂I 22 i. NaOEt, EtOH ii. CH3COCI V III NaOEt EtOH i. dil.OH heat ii. H30 CH3(CH₂)3Br CH₂(CH₂), Br i. dil.OH ii. H30¹ heat, i. dil.OH heat_ ii. H30*5. What is the major organic product from the following Cla FeCl3 reaction? А. В. C. D. no reaction18. The product of the following reaction 1. Hg(OAc), (CH3),COH, THF 2 NABH4, OH OH I II II IV V A) I B) II C) III D) IV E) V
