Question 9 Which one of the following reaction steps work best to carry out the transformation...
С. D. Which of the following sequences of reagents will be used to do the following transformation? он Он А. 1. KOtBu; 2. Hg(OAc)2, H2O; 3. NaBH 1. TsCl, pyr; 2. KO B ; 3. BH3-THF; 4. H202, NaOH 1. H2SO4, heat; 2. Hg(OAc), H2O; 3. NaBH 1. TsCl, pyr; 2. NaOH; 3. BH3 THF; 4. H202, NaOH В. С. 8. Select the best reagents for the reaction below. Br Br Na ? А. 1. OsO4; 2. NaHSO3, H20 В....
Slide appropriate reactants into the boxes to conduct the following synthetic transformation. You don't need to necessarily fill all the boxes, but if you don't use them all, fill from the top down. Unused boxes can be left empty. Br CH3CH2CH2Li 1. BH3-THF; 2. NaOH, H2O2, H2o Hg2+, H2O, H+ KCN, HCN H20, H+ CH3OH, H+ NaOH, H2O 1. (Sia 2BH; 2. NaOH, H2O2, H2O PhLi HOCH2CH2OH, H+ Nothing Needed PCC PhMgBr CH3CH2NH2, H+ H2Cr04 KCN NaBH4, MeOH (CH3CH2CH2)2Culi CH3CH2MgBr...
Provide the reagents necessary to carry out the following conversion. A) B). C) Đ) E) 1. H2O/ H2SO4, 2. PCC/CH2Cl2 PCC/ CH2Cl2 1. BH3, 2. H2Oz/NaOH/H2O 1. 03, 2. Zn/acetic acid 1. BH3, 2. H2Oz/NaOH/H20, 3. PCC for the following reaction
In each reaction box, place the best reagent and conditions from the list below. OH a 2) 3) H2S04, (conc.), heat NaH BH3/THF H2O2, NaOH, H2O SOCl2 Br2, H20 PBr3 03 NaOH HBr macmillan learning each reaction box, place the best reagent and conditions from the list below. 1) 2) OH 3) OH 4) H2O2, NaOH, H20 CH3COO- CH30- H30* BH3/THE H2SO4 (conc.) NaBH4 NaOH TsCl, pyridine (CH3)3C0-
1. Give the missing reagents, reactants or products for each of the following reactions. KOC(CH3)2 (E2) 1. BH3 2. H2O2, NaOH, H2O PCC HBr/ROOR how many stereoisomers? PCC ad Excess H, H CH2Cl2 OT_HBr SN2 give one stereoisomer SN2 NaCN ACN (solvent) KMnO4 H2SO4 NaOEt (E2) mCPBA H2SO4 (cat) don't worry about this reaction ОН PCC CH2Cl2 NaOEt (E2) mCPBA H2SO4 (cat) don't worry about this reaction OH PCC CH2Cl2 HI (SN1)
9. Which of the following sequences of reactions would be best for the following transformation? 1) BH3 a) t-BuOK2) H2O2, NaOH Jones Br t-BuOH b) NaOH 1) BHz HO 2) H2O2, NaOH PCC NaOH 1) Hg(OAc)2, H2O H2O2) NaBH Jones
Testbank, Question 049 Provide the reagents necessary to carry out the following conversion. 1. NH3 2. 03 3. (CH3)25 1. BH3 2. H202/NaOH/H20 3. Croz/H2SO4/H20 OR PCC/CH2Cl2 1. 9-BBN 2. H2Oz/NaOH/H20 3. 03 O
In each reaction box, place the best reagent and conditions from the list below. он 1) OH 2) 3) Вн-THF NABH4 in EtOH PCI3 Cl2, H2O H2SO4 (conc.) H202. NaOH, H2о dilute H30* Вг2 НаСrОд In each reaction box, place the best reagent and conditions from the list below 1) OH 2) PHCO3H in CH2Cl2 H2O2/NaOH O3 in CH2Cl2 PhLi in Et2O НаРОд, Д B2He in THF PCC in CH2Cl2 CH3ONa in CH3OH NaBH4 in EtOH
What is the best set of reagents and order for the following transformation? OH ? 1) CH3CH2CI, AIC13; 2) Br2, hv; 3) NaOH 4) BH3-THF; 5) H2O2, KOH 1) Br2, FeBrz; 2) Mg, ether; 3) 4) H30+; 5) PCC 1) Br2, FeBr3; 2) Mg, ether; 3) H2CO; 4) H30+; 5) PCC 1) CH3CI, AlCl3; 2) NBS, hv; 3) NaOH; 4) PCC
1. PREDICT THE PRODUCT: Provide the structure of the major product expected from the following reactions or reaction sequences. Make sure you account for any regio- and/or stereochemistry! (24 pts.) H2O 1. Hg(OAC), CH, OH 2. NaBH H2SO4 H20 1) BH-THF 2) H202, KOH HBr Bry, H2O HBr ROOR 1. BH3-THF 2. H2O2, NaOH H20, H2SO4 1. NaNH2 H2 H-CEC-CH2 CH2 CH3 2. CH CH Br Lindlar cat 1. Sia BH-THF 2. H2O2, H2O