Explain your answer 13. Consider the following reaction. Which choice below best describes the stereochemistry of...
5. Which of the following reagents is the best choice for the reaction shown below? CH Cн, A) H2O2 B) LAH C) POCI D) OsO E) O 6. Which of the following reagents can be used to convert cyclopentanol to cyclopentane? A) TOSCI, pyridine followed by LiAlH4 B) Na2Cr207, H2SO4 C) NaBH4 followed by H30 D) POClypyr, followed by H2, Pt E) both A and D 7. What is the product of the following reaction? OH Cro3, HC, pyridi ne...
Review Topics Draw the major organic product of the reaction shown below. (Reterences OH + SOCI pyridine • You do not have to consider stereochemistry. • You do not have to explicitly draw H atoms. - - -000 - 08 Draw the major organic product of the reaction shown below. + HBO • You do not have to consider stereochemistry, • You do not have to explicitly draw H atoms. C-@- -O0O- N Draw the major organic product of the...
3. Which of the following is the best choice Boice for the reaction shown below? ch A) H.O. B) LAH C) POCH D) OsO E) O 6. Which of the following reagents can be used owing reagents can be used to cart cyclopentanol to cyclopentane A) TOSCL, pyridine followed by LAH B) Na2Cr207, H2SO4 C) NaBH4 followed by H30+ D) POClypyr, followed by H2, Pt E) both A and D 7. What is the product of the following reaction? OH...
7. For the following substitution reactions predict the product(s) showing stereochemistry only if is of revelance. Also comment on what type reaction: S1 or SN2. Finally is the starting material and product optically active or inactive? Explain! CH, OH HBr CN CH3CH2CH3 HO HBr CN 1 CI CH3CH2CH3 НО HBr CH Br H3C
7. Consider the E2 reaction below and answer the following questions. (1) The stereochemistry of carbon 1 is set as R, but the stereochemistry of carbon 2 is racemic (50% wedge, 50% dash). Predict the two major organic products of the E2 reaction below. Be sure to indicate the stereochemistry of the products. You do not have to draw a mechanism. (6 pts) Base E2 ii) Determine the relationship between the two products above. Circle one. (3 pts). constitutional isomers...
5-12 Kinetics of Nucleophilie Siebstitution ( 4.) Consider the reaction below (6 pts) + H2O → HCI + Intermediate a. Which isomer of the reactant, 3-chloro-3-methylhexane, is shown? Ror S b. Draw the reaction intermediate. c. Circle the geometry of the intermediate: Planar Trigonal planar Tetrahedral Product d. Draw the organic product of the Sul reaction of 3-chloro-3- methylhexane e. Is the organic product optically active? Y or N f. If you answered yes in "e" is one isomer produced...
Consider the two reactions below for the optically active alkyl halide, (R)-2-chloropentane. The first reaction occurs rapidly at room temperature and gives an optically active product. The second reaction, starting with the same alkyl halide, occurs slowly at room temperature and gives a non-optically active product (racemic mixture). Draw a mechanism (include all H's and lone pairs) for cach reaction and explain how the mechanism leads to the observed results. Hics CHES- CH.OH CH,OH
Hc VCH Draw the organic product formed when CH3CH2CH2OH is treated with each reagent. a H2S04 (180°C) d SOC12, pyridine Ig 1) NaH; 2) CH3CH2Br b NaH e PBr3 h 1) TSCI, pyridine; 2) NaSH c HBr f TsCl, pyridine 3. Draw the organic product formed when l-methylcyclohexanol is treaded with each reagent. In some cases, no reaction occurs. a KH c HBr Te NaHCO3 b Nacid HCI f 1) KH; 2) CH3CH2Br Draw two different routes to each of...
please explain why g. Consider the following reaction to answer the questions below. (4pts each) MC CH3OH A) The reaction is likely to proceed via an mechanism. Circle your choice Sw1 S2 E1 E2 B) Would the rate of this reaction increase by switching the nucleophile to CH,O-? YES I NO (Circle one) C) In this reaction, the stereochemistry of the carbon bearing the leaving group would undergo RACEMIZATION / INVERSION / RETENTION of stereochemical configuration (Circle one)
Mini-Spiderweb (16 pts, 2pts/box). Please complete the following reaction spiderweb with the appropriate starting materials, reagents or products. Pay attention to stereochemistry, and for product boxes – include only the major product(s), unless otherwise noted. E1 and Sn1 (5 pts). The following alkyl halide will undergo both E1 and Sn1 mechanisms to give a slew of products when exposed to water. Please draw them all in the box below. Remember to consider rearrangements and account for all stereoisomers formed. Mini-Spiderweb...