synthesis problems
please help with these synthesis problems! Госнз 2) 3 Br
Make at least four (4) synthesis problems with 4 steps or more. Use addition, substitution, and elimination reactions. Try to change the location of substituents or of pi- bonds, and to change the substituents. Have at least one synthesis that uses ALKYLATION of an alkyne to increase the C-C skeleton. Format each synthesis as a problem and a solution as shown below:GA 11 example problem.pdf
Synthesis- choose four of these six problems. A fifth may be done for extra credit. A) Starting with ethyl-acetoacetate, prepare B) Starting with diethyl malonate, prepare (C_5H_11)_2 CHCO_2H. C) Using examine synthesis, prepare
Solve both synthesis problems below (e) and O O NH OH
3. 6 pts each - Choose two of the following problems and devise a synthesis to create the corresponding molecules. You may use any reagent or starting material containing 4 carbons or fewer, a phenyl group, or a benzyl group. The third synthesis may be attempted for up to 5 points of extra credit points. ??? ???
Need help with these synthesis problems Identify the major product of the following reaction sequence H3O CH2OH H2O, heat
Propose a synthesis of the target compound from the indicated starting material. (Answer any two problems for full credit)
5. The following problems are synthesis challenges. You are provided with the starting material and final product. You must provide all reagents and structures required to achieve the multi- step synthesis. This CANNOT be accomplished in 1 step but will not require more than 4 steps (a) There are at least 4 ways to solve this synthesis, try and find at least 2 of them: CH3 ? 13 Н.С. HEC CH OCH N CHE CH CH final product starting material...
For each synthesis, provide all major intermediate products for each step. Please complete the problems in order and make sure they are clearly labeled with the problem number. лу + co, + но ОН
Do not know what reactions to use for these synthesis problems 3) Show how the following molecules can be synthesized from the starting material indicated. Draw the structure of each intermediary compound in your synthesis, and add reagents above/beneath your reaction arrows. (24 points total). i i HCOOCH, HCOOCH3 HCOOCH₃ add c=0 and NH₂ Br Ba LDP-78°C LDA, -18°C Page 3 of 5