Answer the following questions related to the separation of a mixture containing the following molecules: Compound 1 Structure OH 2 3 4 OH OH (a) What is the DOMINANT intermolecular force that will attract each compound to bind to silica gel? Compound 1 Intermolecular Force 2 3 4 H-Bonding H-Bonding Dipole-Dipole H-Bonding (b) The following compounds were separated by silica gel chromatography. Each compound was collected and placed in flasks labeled A, B, C and D respectively, in order of their elution from the column (i.e., the compound in flask A eluted first, B eluted second, C eluted third, and D eluted last). Indicate which compound 1-4 you would expect in each flask. Flask A Compound 3 B 2 C 1 D 4

Answer the following questions related to the separation of a mixture containing the following molecules: Compound 1 Structure OH 2 3 4 OH OH (a) What is the DOMINANT intermolecular force that will attract each compound to bind to silica gel? Compound 1 Intermolecular Force 2 3 4 H-Bonding H-Bonding Dipole-Dipole H-Bonding (b) The following compounds were separated by silica gel chromatography. Each compound was collected and placed in flasks labeled A, B, C and D respectively, in order of their elution from the column (i.e., the compound in flask A eluted first, B eluted second, C eluted third, and D eluted last). Indicate which compound 1-4 you would expect in each flask. Flask A Compound 3 B 2 C 1 D 4

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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O Reagents Available a. CH₂=CHCH₂CI, AICI 3 CH3 b. CH₂Br₂, OH™ C. CH3CH₂COCI, AICI 3 d. H₂, Pt e. NBS, CCI4 f. K* tBuO™ g. CO, HCI, CUCI/AICI3 h. CH3CH₂CH₂COCI, AICI 3 i. BrCH₂CH₂Br, OH- j. CH3CH₂CI, AICI 3 k. RCO3H I. H3O+ Using conditions from the table, show how you would synthesize this compound from catechol (1,2-benzenediol). Select reagents from the table in the order that you wish to use them, i.e. aced; do not include punctuation or spaces. If more than one route exists, choose the shorter one; in no case will a synthesis require more than 5 steps.
Reagents m. 2 equivalents of NaNH2 H2, Lindlar's catalyst Na / NH3 p. H2SO4, HgSO4 q. (sia)2BH then H2O2, NaOH 1 equivalent of NaNH2 a. HCI b. HBr n. c. H20, H2SO4 d. Br2 0. n Cl2 е. H2, Pd g. Br2, H20 h. Cl2, H2O f. r. compound a Os04 then NaHSO3 j. Hg(OAc)2, H20 then NABH4 k. BH3 then H2O2, NaOH Oz then (CH3)2S i. compound b I. The above synthesis was designed using the Organic Chemistry Roadmaps in the appendix of your textbook. In this synthesis, reagents from the table (shown in blue) are used to carry out the indicated reactions. In the box below, draw the structure of compound b. • Use the wedge/hash bond tools to indicate stereochemistry where it exists. • Consider E/Z stereochemistry of alkenes. • If more than one structure fits the description, draw them all. • If a compound is formed more than once, add another sketcher and draw it again. • If the reaction produces a racemic mixture, draw both stereoisomers. Separate structures with + signs from the drop-down menu.
f. g. OCH 3 CO₂H OCH 3 pyruvic acid 1. SOCI22 2.? NaBH4 CH3OH methicillin (narrow-spectrum, B-lactam antibiotic)? H₂SO4 (cat) C6H8O4 (show structure)
3
Primary reaction product
4) Why might a student obtain a percent yield more than 100% for this preparation?
18. Which reagent(s) will best complete the following reaction? NO2 NH2 H2SO4 HCI, Fe NaNH, NH3, HCI 1. KMnOд, НО", д 2. H¯ II III IV V d. IV е. V а. I b. II с. II
Please don't provide handwritten solution....
G.318.
Reagents a. CeHsCHO b. NaOH, ethanol c. Pyrrolidine, cat. H* j. Brz, H* d. H2C=CHCN e. H3O* f. h. BRCH2CH=CH2 i. Na* OEt, ethanol k. K* t-Buo I. CH2(CO,Et)2 m. heat CH2CH2CN LDA g. ELOC(=0)COEt Select reagents from the table to synthesize this compound from cyclopentanone. Enter the letters of the chosen reagents, in the order that you wish to use them, without spaces or punctuation (i.e. geda).
II. Complete the following reactions
3. PROVIDE FINAL PRODUCTS CI fo 1. 2. HBr LiCu 3. Mgº, Ether 4. CO2, then H3O+ 2