3. (28 pts) Draw the starting material, reagents, or major products of the following reactions. Indicate...
II. Reactions: Predict the major organic product(s) or write the appropriate reagents/starting materials for the following reactions. Indicate stereochemistry and regiochemistry when appropriate. Indicate reactions that are expected to result in a racemic mixture of products DBr 1. Н.О, CHCI он HSO, heat кон 1) вн, THF 3. 2) H202. HO 1) Hg(OAc)2, CH,OH 2) NaBH, OH 5. Br2 SH 6. HIO4 OH THF, H2O "он III. Synthesis: Starting from the alkenyl bromide below, devise a synthesis that produces the...
1. (28 pts. total) Draw the major organic product of the following reactions or provide reagents for the transformation. Assume an aqueous workup in each case. Indicate the stereochemistry where necessary a) 7 pts OH PCC b) 7 pts. Lindlar catalyst c) 7 pts. Predict the starting materials that were used to form the following molecule via Robinson annulation. Robinsca annulation d) 7 pts. Predict the starting materials that were used to form the following molecule via reaction followed by...
Indicat II. REACTIONS: Give the MAJOR organic products of each of the following reactions. Stereochemistry where appropriate. [3 points cach] нусЗн H. CH CH,CH,OH H2SO NBS DMSO, HO " Học &H 1) NaOCH 2) H₃0 нс" н OH 1) TSCI, pyridine HD 2 0
for each reaction, provide the starting material, product, or reagents. indicate stereochemistry when present. scan your assignment. For each reaction provide the starting material, product, or reagents. Indicate stereochemistry when presen HOCH2-OH, H (-H.0) Na Cr 0 H2SO4, H,0 HNEL, H, heat (H2O) 0 H. heat OH (HO) Food HS(CH),SH, H+ (HO) HO OH OH
(10 points) Provide the Starting Materials/Reagents/Major Products for the following transformations. YOU MUST INDICATE STEREOCHEMISTRY AS NEEDED. (You may use asterisks to indicate an equal mixture of the two isomers at a given stereocenter). For each of these reactions, show a detailed arrow pushing mechanism (For problems b, c, and d, only show the first step of the mechanism) H.O. Me Me 1) BD, THF d) 2) D202 OD tBu e) Ch DCM
V. Reactions. Draw the major expected products or supply the necessary reagents for each of the following reactions. Be sure to indicate stereochemistry when relevant. (21) AICI 1.) KMnO4. OH 2.) H,09 FeBry 1. HNO2, H,SO + Mg, anh. ether 2. CO2 4. LIAIH, then H 1. CH3COCI 2. Bry/FeBry 3. NaOH, HO
6. (24 pts) Complete the reactions shown below, remember to show all relevant stereochemistry. For products only draw the MAJOR product, if the conditions yield no reaction indicate "no reaction." Alkyl Halide H C Br HỌC CH, NaOCH,CH Br bo o led bono
2. (16 pts) Reactions Provide reagents, products or starting materials for the following reactions. Show stereochemistry when relevant (or loss thereof). If a reaction produces no significant products, write "NR". If you have a question about an abbreviation, just ask. NaBr OH 1. TsCI 2. Nal, DMF CI DMSO OH 1. PBrg NaCN 2. KOC(CH3)3 Ether LDA НОН THE NaH NaH PO Acetone Heat, water
11. Give the MAJOR organic products of each of the following reactions. Indicate stereochemistry of th products where appropriate. [3 points each-15 total] K* "O Н.О . Na OCH THF HO CH-CH2O Na DMF Total points this page
Draw the products for the following reactions. Clearly indicate stereochemistry where important. 6. Draw the products for the following reactions. Clearly indicate the stereochemistry where important. 12 pts Br- 1.0, 2. Zn, HO CH,OH KMnO4 1. BH3 2 NaOH, H,0 1. Os0 2. NaHSO3 CHCl,. NaOH Br2 H2. Pd 1. Hg(OAc, HO 2. NaBH