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- Which alkene is LEAST reactive in acid-catalyzed hydration? all have equal reactivity А. В. c. D. Е.12.13 a) Predict the products of the following reactions and draw mechanisms showing their formation. Br₂ NaHCO. MeOH 1) II) IV) HO OH OH Тон OH OH PCC CH₂Cl₂ H₂CrO₂ H₂O, H₂SO₂ H₂CrO H₂O, H.SO(13) A B C OD What is not an elementary step in the mechanism for the following reaction? H₂O НО. (A) loss of iodide to generate a carbocation (B) 1,2-methyl shift/rearrangement (C) nucleophilic attack by water (D) proton transfer D. You selected this answer.
- 4G. 4G 7:41 PM 27 4. Draw structures corresponding to the following names: (a) 2,2-Dimethylpropanoyl chloride (c) 5,5-Dimethylhexanenitrile (e) trans-2-Methylcyclohexanecarboxamide (f p-Methylbenzoic anhydride (b) N-Methylbenzamide (d) tert-Butyl butanoate21. (4) Provide a mechanism for the following transformation. Кон heat Br32. (14) Predict the major organic product of the following reactions or provide the reagents needed to complete each transformation. Clearly show stereochemistry where appropriate. (a-b) (c-d) (e-f) (g-h) KOH heat LDA heat CH3 1. Br₂, light 2. CH3O+K, heat CH3 NaBH4 CH3OH Br S Na+ CN H₂O cold KMnO4 1. CH3MgBr 2. H₂O, H+
- Compound A, C,H160 is optically active and gives a negative results with Iodoform tuɔt and forms B, C,H14 when reacts with concentrated sulphuric acid. Ozonolysis of B forms C. C;H6O and D, C8H$O. Both C and D gives positive result with Iodoform test. Determine the structure of A, B, C and D and explain. 7.31. (8) Provide one reagent that will complete each transformation. (a) (b) (c) (d) OH & OH OH -CH₂OH CH₂OH ? HBr ? ? -CH₂CI OH (e) (f) ? (g) (h) -O+K H ? OH KMnO4 -OCH₂CH3 32. (12) Predict the 4 products resulting from reaction of the alkene with 1 equivalent of HBr (8 pts). (b) label the kinetic product (2 pts). (c) label the thermodynamic product (2 pts). OCH3 -OCH3 H OTS19). What is the major organic product of the following reactions? LBCH COOH 2. Pyridine ? (-HB) (4) D C " & & & & &
- 21:15 20. Provide the major product of the following reaction. If no reaction occurs, write "n.r." NO₂ CH₂CI, AICI (if o,p-substituted products are possible, only provide the major para-substituted product, otherwise, only provide the meta-substituted product) Send a chat C5.2. Provide the reagents needed to accomplish the following sequence of reactions. OH 1) Single stereoisomer 2)32. (14) Predict the major organic product of the following reactions or provide the reagents needed to complete each transformation. Clearly show stereochemistry where appropriate. (a-b) (c-d) (e-f) (g-h) (i-j) (m-n) KOH heat NBS hv 1. Br₂, light 2. CH3O+K, heat LDA heat CH3 NaBH4 CH3OH CH3 CH₂l2, Cu Zn H₂O „H Br Na+ CN H₂O cold KMnO4 1. CH3MgBr 2. H₂O, H+ CH3OH, heat CH3S- +Na acetone mCPBA