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- taneon lo robio i guiwollol o n 6A. Draw all of the possible aldol addition and condensation products from the following reaction (you may ignore stereochemistry of aldol products but not condensation): NaOH OMe ? H3C CH3 H OMe Jobong oryloby vithob plam15. Which of the following would react fastest in an elimination reaction using NaOMe/MeOH? First choice: Second choice: A OTS Br B C Br of DWhich reaction will not give 100% enolate? to EtO OEt LDA NaOEt H. NaOEt EtO LDA 0=
- 5) Which of the indicated eliminations is easier? -HCI -HBr R Br H2SO4 -HI S но т -H20 6) Which of the following would be the best leaving group? Explain. a. Based on elimination from neutral compound b. Based on anion intermediate.Draw the major elimination product formed in the reaction. Select Draw Rings More Erase C H CH;O-K* DMSOEnolates react with a B-unsaturated ketones to afford the 1,4-addition product. What is the expected product A for the following reaction sequence? NaOEt EtO OEt ELOH
- What is the structure of reagent B in the following sequence of reactions? 1) NaOEt H30* он OEt EtO OEt 2) Reactivo BDraw the major product formed in the reaction of an epoxide with acidic methanol. Select Draw Rings More Erase H CH;OH H2SO4The aldol addition product of the following reaction is мен (2 mol) A OH A D B кон, но 6-8 °С OH во OH с сно ОН D CHO
- alytic Reactions and Protecting Groups HO HO D or HO ?C Reaction A Reaction B both reactions give racemic products Reaction A is easier than B HO- LIS EtOH LIOH with DMSO HO An enantioselective reaction F E A new epoxide Suggest the types of reagents that might be used. G Common Solvents Polar Protic Polar Aprotic Non-polar:12. Draw the organic products formed in each reaction. Br CO₂Et Li₂CO3, LiBr DMF [1] LDA [2] CH3CH₂Li Br₂ (excess) OH* 13. Draw a stepwise mechanism showing how two alkylation products are formed in the followingDraw the major product formed when the given epoxide reacts with aqueous acid. Select Draw Rings More C H H30* H20 H