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2. For each of the following transformations select the most appropriate reagent(s). (4 points) i Olovo...
4. For each of the following transformations select the most appropriate reagent(s). 0 - 0 $- a. 1) NaBH/EtOH 2) H:0 b. 1) LiAlH/Et, 2) H30 c. H , Pd/C d. None of the above e. All of the above 5. For each of the following transformations select the most appropriate reagent(s). (2 points) HO a. 1) NaBH/EtOH 2) H:0* b. 1) LiAlH4/Et20 2) H:0 c. None of the above d. All of the above
1. For each of the following transformations select the most appropriate reagent(s). (5 points) A. 1) NaBH,/EtOH 2) H30* B. 1) LiAlH/Et20 2) H30* C. Hz, Pd/C D. None of the above E. All of the above
3. For each of the following transformations select the most appropriate reagent(s). (6 points) . سئو -- 0 A. B. CrOz/acetone-H2O 1) DMSO, (COCI), 2) Et3N C. PCC/CHgCl2 (NOTE: PCC = o=وه D. Na2Cr20/ H2SO4 - H20 - . و وهده E. DMP/CH2Cl2 (NOTE: DMP = F. None of the above . سند - G. All of the above
RM-Q8 Please select the most appropriate reagent for the following reaction OH ? a) 1) O3 2) Zn 2) H2O2, NaBH b) 1) BH3, THE c) PCC d) LiAIHA Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a a) b b) c c) d d)
23) Select the best reagent(s) to accomplish the following transformation. a) i) 2 CH3CH2MgBr; ii) H30+ c) CH3CH2Br b) i) (CH3CH2)2CuLi; ii) H2O d) i) 2 CH3CH2Li; ii) H30+ 24) Select the best reagent(s) accomplish the following transformation. NH2 a) i) LiAlH4; ii) H30* c) H2O b) SOCI d) H30, heat
2. Supply the missing reagent(s) and/or products for the following transformations. Include the appropriate stereochemical specifics. (8 points) 1. BH, THE 2 H . NaOH CH.CH NASH DMSO
(Matching) Complete the following reaction by selecting the most appropriate reagent or reagents for each missing step. 1.777 2. CH,Br 3.??? OET 4.772 5.777 EIO OH NaH SOCI H,0* heat mi IV NaBH EtOH Br EtOH CH,CH,Br NaOH, THE VI VII VIH IX Х O CH,BE Br Br Br Br XI XII XV XIII XIV < 1st Step [Choose > 3rd Step [Choose 4th Step [Choose) 5th Step
(Matching) Complete the following reaction by selecting the most appropriate reagent or reagents for each missing step. 1.227 2. CH,Br 3.222 OH EIO 4.272 5.772 NaH H30* heat soch III NaBH, ETOH ETOH NAOH THE CH,CH,Br V VII VIII IX х CH,Be Br Br CI XI XII XIII XIV XV XI XII XII XIV 1st Step 3rd Step Choose ) V VIII XII X IV II IX XV XIII VI XIV XI III VII 4th Step - 5th Step <...
For each of the following five transformations, predict the reagent(s) which would be necessary (10 points total, 2 points each). ОН Bro -ty- Br ar но" OH
4. Provide a complete curved-arrow mechanism for each of the following transformations involving conjugate addition Note that no stereochemistry is shown or implied in any of these reactions, and you may neglect it in your mechanisms as well. a. For this mechanism, you may assume that the reagent NaBH.CN behaves just like NaBHs, and that it preferentially performs 1,4-addition to unsaturated carbonyl compounds. O ! OME OMe H 1. NaOE, ETOH 2. NaBH CN, MOH oMe ОMe OME OME EtOXOE...