Propose a synthesis of each of the following compounds using the indicated starting material. You may use any organic compounds and any inorganic compounds or solvents of your choice. Do not show any reactive intermediates, mechanisms, or transition states, but be sure to show each isolable compound along your synthetic route. a. b. ن H3C CH3 нас хон Ph steps CH3 steps steps -CEN H3C CH3 H3C OH HOH Ph OH OH (racemic)

Propose an efficient synthesis for the given reaction.

Choose the correct reagent or series of reagents from the ones listed to carry out the following synthesis. CH₂ O 1. 03.-78°C 2. Zn, CH3CO₂H O H₂O, H+ O CH₂OH, H+ OBH3, THF followed by H₂O₂, HO™ OH CH₂

Propose an efficient synthesis for the given reaction.

Hello, If you could please help me solve this problem. These are the options for each reagent.  1:  HCl/H2OHCl/H2O CH3NH2CH3⁢NH2 NaOH/H2ONaOH/H2O methanol 2:  NaOH/H2O CH3NH2 methanol HCl/H2O 5. NaOH/H2O CH3NH2 methanol HCl/H2O 6 NaOH/H2O CH3NH2 methanol HCl/H2O

6

Please help with both questions. Thanks!

Identify the correct reagents and conditions to perform this chemoselective reaction: H ရှုံး H Select one: Me e. Reagent(s) and conditions? a. NaBH4 b. BH3 THF Pd/BaSO4, H₂ (1 atm.), quinoline, Pb(OAC)2, MeOH d. Pd/C, H2 (1 atm.), MeOH DIBAL Me H H OH

Choose the starting material 1) or 2) and the reagent 3) or 4) that would produce the given trans diol as the major product. Starting material 1 and Reagent А 3 Starting material 1 and Reagent В 4 Starting material 2 and Reagent C 3 Starting material 2 and Reagent 4 Startting Materials Reagents Br OH H2SO4 (dilute) 3) 1) 1. NaOH (dilute) Intermediate OH H20 Product OH 2. NH4CI (to neutralize reaction) Br Final Product 1. NaOH / H2O 4) 2. H3O* он 2)

18 and 20 only thank u