2. Predict the product/starting material for the following reactions. or to go D PCC 1) DIBAL-H OH 2) H20 H + CH3CH2OH K2Cr2O7 H30* E
Which starting material would best accomplish this transformation? 1. SOCI2 2. CH3NH2 3. LiAlH4 4. H30* Н OH Br Which is the best starting material for the following reaction? CH3CH2NH2 ? pyridine HN o о NH2 С- CI OH Which are the best reagents for the following transformation? OCH3 core O 1. (CH3)2CHMgBr 2. H30+ 1. NaOH, heat 2. (CH3)2CHCH=PPh3 O 1. LiAlH4 2. TosCl, pyridine 3. (CH3)2CHCH Br O 1. DIBAL 2. (CH3)2CHCH=PPh3 What is the major product in...
Predict the products of the following reactions. a. b. c. (1) excess CH Mg! CI (2) H30* (1) DIBAL-H (-78 °C) (2) H30 OCH (1) DIBAL-H (-78 °C) (2) H2O
1. DIBAL-H, -78 °C, (1 equiv) Me 2. Php OCH 3.1. Mg il. CO2 ll. H30* 4. NH3, DCC 5. LIAIHA Lei NEWS
1) Provide the starting material for the following reaction. (0.5 pts) Он Он 1) Hg(OAc)2, H20 2) NaBH (provide starting material) 2) Provide the major organic product(s) for the following reactions. If stereoisomers are formed, please show both stereoisomers. (0.5 pts each) 1) BH3 THF a) 2)120 NaOH 1) NaOH, H-O, 55°C b) 2) OsO4 t-BuOOH 1-BuOH, NaOH Br2 c) CCl4 H2O, H2SO d) H9SO4 2 equivalents HBr e) 3) The following ction generates an ether. Provide the major organic...
Question 1 6 pts HO Starting material 1.LIAIH4 2. H30* HO Which starting material will give you the product selectively? Ph Ph Ph Ph A 00 С D Molecule C Molecule B Molecule D Molecule A
H3COEU H3C, H a) NaBH4, H2O b) i. DIBAL-H, CH2Cl2, ii. H30+ c) Br2 (excess), NaOH, heat d) i. LiAlH4, diethyl ether, ii. H30+
1. Provide the structure (with unambiguous stereochemistry) of the starting material for the following reaction. (2 points) 2. Provide a mechanism, with curved arrows representing the flow of electrons, for the reaction above. (3 points)
1. Provide reagents that could be used to convert the starting material to the final product shown. More than one step is required. You may list the reagents in order or show each step in the synthetic sequence. 2. Indicate a plausible mechanism for the following reaction. Be sure to show bond making and bond breaking as well as all electron movement. Every arrow counts. Be precise! Don't forget to show charges where necessary. If stereochemistry is involved, please show...
1. Cl, H20 2. NaOH 3. CH3CH2MgBr 4. H30* 1. Mg 2h) 2. H₃C.. 3. H30+ 1. SOCI OH 2. DIBAL"H 3. H30* OH 1. NaOH 2j) 2. CH3CH2CI 3. O o 2k) [ N-H H20. STAB OH 2)) 1. NaOH 2. CH3CH,CI 3. O o IN-H 2k) H30*. STAB 21) 1. 2 KCN, HCN 2. LiAlH4 3. H30+ 4. H2, Pt