Using the reagents listed in the table below, show how to convert 1-pentyne to the following products. (Specify the reagents you would use to carry out the conversion by using letters from the table. The reaction may require more than one step, if so, write the letters in the order that they are used, e.g., hb. If two or more ways of conversion to the same product are possible, show only one of them.) Reagents available d. H₂O a. CH3 COOH g. NaNH, / NH3 h. (sia) 2 BH b. CH3 COOD e. D₂O c. H₂O, H₂SO4, HgSO4 f. H₂O2, H₂O, NaOHi. (sia) ₂BD (a) CH3CH₂CH2 H D D The reagents are (in order of use): i (b) CH3CH₂CH2 H H D The reagents are (in order of use): h

2) Challenge: for a pharmaceutical study, we require an alcohol (OH group) next to a tertiary carbon center, only one tertiary carbon in the structure, and the alcohol must be chiral. With this in mind, we are assigned to use the alkene below and any reactions we have available to us. Consider each reaction that you have learned to install alcohol groups, and indicate which ones would satisfy our study. Do so by drawing the products of each reaction you consider. Usage: we often design syntheses around desirable functions of molecules, which is largely dictated by which functional groups are present and where they are in the molecule.

From the table of available reagents select the one(s) you would use to accomplish the transformations shown below. Use the minimum number of steps; in no case are more than two steps necessary. List reagents by letter in the order that they are used.

I need help with these problems. I am completely lost when it comes to organic chem.

2) Using the reactions you have learned to date, show how to convert ethanol into the following hex- 3-one. You must use ethanol as the source of all carbon atoms in the final product. Show all required reagents and all molecules synthesized along the way. OH

Using the reagents listed in the table below, show how to bring about the following conversion:   (Specify the reagents you would use to carry out the conversion by using letters from the table. A step may require more than one reagent, if so, write the letters in the order that they are used, e.g., if. If two or more ways of conversion to the same product are possible, show only one of them.)

Draw a structural formula for the more stable carbocation intermediate formed in the reaction shown. CH3CH2 CH₂CH₂CH3 H H + HI • You do not have to consider stereochemistry. • Do not include anionic counter-ions, e.g., I, in your answer. • For cases in which carbocations of the same or similar stability are expected, draw all of the structures. • Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right corner. Separate structures with + signs from the drop-down me menu. ChemDoodleⓇ [ ] در > Previous Ne:

For Questions 1-20, Canvas will ask you to answer a random selection of 20 boxes. Cross-reference the column and row to predict the major reaction that will occur with that particular haloalkane and nucleophile. Be as accurate as possible! Your answers will be one of the following: SN2 E2 (for any Elimination reaction that only has one possible product) E2Z (for Zaitsev Elimination) E2H (for Hofmann Elimination) SN1 E1 NR (for No Reaction). Haloalkane CH3-CI CH3CH₂CH₂-CI CI CH3-CH-CH₂-CH3 CI CH3-C-CH₂-CH3 1 CH3 CH3-CH=CH-CH2 CI CH2=CH-C-CH3 CH3 5-5 CI CI CH CH3 CI CH₂ OT CI CH,CH,ONa, CH₂CH₂OH Box 1 Box 7 Box 13 Box 19 Box 25 Box 31 Box 37 Box 43 Box 49 Box 55 CH3CH₂OH . 0°C Box 2 Box 8 Box 14 Box 20 Box 26 Box 32 Box 38 Box 44 Box 50 Box 56 Reaction Conditions NaSH DMF CH3CH₂OH 60°C Box 3 Box 9 Box 15 Box 21 Box 27 Box 33 Box 39 Box 45 Box 51 Box 57 Box 4 Box 10 Box 16 Box 22 Box 28 Box 34 Box 40 Box 46 Box 52 Box 58 (CH3),CONa (CH3)3COH Box 5 Box 11 Box 17 Box 23 Box 29 Box 35 Box 41…

The answer choices for part b ["How would you convert the alkene to a epoxide?"] are: (a) Br2/NaNH2 in liq NH3; (b) mCPBA; (c) OsO4Thank you!

Draw the major organic product(s) of the following reaction. + NaOH H₂O •You do not have to consider stereochemistry. • If no reaction occurs, draw the organic starting material. When S1 & El pathways compete, show both the substitution and the elimination products. Separate multiple products using the sign from the drop-down menu. . Do not include counter-ions, e.g., Na*, I, in your answer.