Jos ou 2POMU PGJOM Which reagents are most likely to accomplish the reaction shown below? 4....
25) What reagents can best be used to accomplish the following transformation? A) H+, H2O B)1. BH3-THF 2. Ho, H202 C)1. Hg(OAc)2, H2O/THF 2. NaBH4 D)1. Hg(O2CCF3)2 CH3OH 2. NaBH4 E) NaOH, H20
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....
Match each reaction with its reagents. HO 2 + onantiomer 3 4 OH + enantiomer + enantiomer 6 o OH . l nord o out + enantiomer 12 11 Br Reagents: C.) D.) NaOH A.) PBS B.) NBS, hv G.) HCI H.) Cla, H.0 F.) Br2 E.) NaNH2 L.) H2SO4, H2O K)Na, NH3 J.) Hz (1 eq), Pt 1.) HB 0.) N.) 1. mCPBA 2. H, H2O M.)1. Hg(OAC)2 2. NaBH P.) 1. BH 2. H2O2, NaOH A
Which reagent or set of reagents will best accomplish this transformation? b OH (A) OsO (B) 1) Hg(OAc); /H:0 2) NaBH, I-BOOH (D) HOOH (C) 1) THF-BH, 2) H-02/OH/H,0 7 What is the product of this reaction? (A) W model Å Which best represents a step in the mechanism for " I- @ AR .-
Select the reagents you would use to accomplish the syntheses shown below in no more than the number of steps specified. List the letters of the reagents in the order that they are used; example: fa. Reagents Available a. HBr b. PBr3 C. (CH3CH2CH2CH2)2Culi f. CH31 g. Hg(OAC)2, H2O, THF; then NaBH4 h. Cl2, light d. (CH3)2Culi I. KOH j. NBS (N-bromosuccinimide) e. BH3, THF; then H202, OH - он CH3 Use 2 steps: V - M Use 3 steps:
3. Identify (draw the structure showing stereochemistry where required) ALL of the missing reactant, reagents, or major product to complete the following transformations. а. Nal НРО, b. H2SO4 Но KMnO4 NH2 d. он Br2 CH2CI2 CHCI кон f. но" 1. excess Hg(OAc)2, H2O/THF OH 2. NaBH g- 1. еxcess BH,/ THF 2.H2O2 h.
Identify the reagents necessary to accomplish the following transformations: Choose from the following list of reagents: 1) xẼ NaNH, 2) H20 10 g-BBN 2) H2O2, NaOH 1) ELMgBr 2) H2O 1) Hg(OAC)2, H20 2) NaBH4 1) TSCI, pyridine 2] -B40k 1) MeMgBr 2) H20 Brz 1) t-BuOK 2) TSCI, pyridine TSCI, pyridine Na2Cr2071) NaBH4 H2SO4, H20 20 H2O2, NaOH PCC, CH2Cl2 Enter the correct letter for each step of the reaction in the boxes below. (Reagents can be used more...
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
19. (Spts total) Match the reagents with the product if the starting material is: Reagent Product Br Br, HO I) RCO H 2) H,O Br он КМпО. NaOH, cold HBr, ROOR A X Он ) Hg(OAc)p.H;O X2) NaBH Br 1) BHy THF 2) H2O2, NaOH "Вг F. он Н.Pt "Вг G. он ) O 2) DMS "ОН Он HBr X OH Br2
1. Indicate the conditions you would use to accomplish each of the following transformations by selecting the appropriate letter from this list. Write the letter above the reaction arrow. You may use some choices more than once, or not at all. A 1) Hg(OAc)2, H20; 2) NaBH B 1) BHs 2) H2O2, NaOH, H2O C 1)Os, 2) (CH3)2S D Os04, TBHP, H20 E 1)Os; 2) H202 F HBr H H2SO4 (cat), H2O I Br2, H20 J H2, Pd/C K NaOH...