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Practice Set-l1 SET-IV Br Br CH3 HO2C .CN 1. 4. Br Cl C OH 2. 5 OH 3. ON 6. 9ON NO2 NH2 1. N2* N(CH3)2 _OSHN OH 3. 02N N2 4, N2 HSO4 2. NH2 02N OH NH2 e.l pH< 6 2 03S S03 ESO3 Practice Set-l1 SET-IV Br Br CH3 HO2C .CN 1. 4. Br Cl C OH 2. 5 OH 3. ON 6. 9ON NO2 NH2 1. N2* N(CH3)2 _OSHN OH 3. 02N N2 4, N2 HSO4...
1. SOCI, NEt3, THE 2. 2 eq Li, hexane 3. HCI, H2O CHO Br hint: multiple steps B TH 1. LIAIH, THE 2. HCI, H2O 3. PBr3, THE CN OH 1. PCC, DCM 2. Mg, Et O 3. HCI, H2O 1. MSCI, pyr 2. KO'Bu, 'BuOH
3.) What is the mechanism and main product for the following series of reactions? (5 points) 1.) Br, hv 2.) Na CN 3.) excess H30
Question 12 Which Fischer projection corresponds with the following molecule? Br OH CHO CHO CHO CHO CHO H ОН HO -H HO- Br HO -H -H H- -Br HE -Br Br -H Br -H CH2CH, CH,CH, CH2CH3 CH2CH3 снясно II III IV y ΟΙ O II O III O IV V
What is the product of the reaction below? CHO NaCN, ethanol then dil. HC1 8-55 OH H- CN ÇN H- 1 OH H-+ci OH H- ci Br BrBr CN
2) CHs LDA 1) LDA 3 2) Ci OH, H20 -OH, H2O CHO 1 LDA 2) CH3CH2Br Он, H2O 1) NaOEt 8 2) NaOEt OEt 10 Cl NaH 2 (excess) 12 HO Bra(excess) 13 HO LDA 14L THF, -78 C NaOEt, EtOH NaOEt, EtOH 16 NaOEt, EtOH 17 Br но 18 OOEt 1)NaOEt, EtOH 2) H3O 19 OEt 20 l HO o CHO + H20
Draw a stepwise detailed mechanism and the products(s) for the following reactions: Н-Br 1. CN 2. Н,о CH,ОН Н,о*
12. Which Fischer projection corresponds with the following molecule? CHO CHO H- OH CHO Ho- Br HD--- H -- Et CH.CH CH₂ CH2 Brott CH₂ CH₃ al diIV e.v c III
85. a. Propose a mechanism for the following reaction: in Br CHO Có + Br b. A small amount of a product containing a six-membered ring is also formed. Draw the structure of that product c. Why is so little six-membered ring product formed?
draw the major organic product , supple mechanism as well 1) Bry/H20 [HO-Br] 2) Ca(OH)2 3) CH2OH /[H] Br /H20 1) BHE.THF 1) NaOH THẠO, H2SO4/H20