Retrosynthesis. Identify the starting materials needed to make the following compound via an aldol condensation. olan...
Draw the starting materials for the compound given below via directed aldol condensation reaction. Show the resonance structure for the following, α,β-unsaturated ketone. 1. Propose reagents or products as needed (you will need sets of reagents for arrows pointing left and 1 product for the right facing arrow). 2. H3C-SH HO
(2) Retrosynthesis. Provide the starting materials needed to yield the following products through either an aldol reaction/condensation, a Michael addition, or a Robinson annulation. If a specific base must be used to aid selectivity of any step, please specify. (20 pts)
What starting materials are needed to prepare the compound below via aldol reactions? Hint: thi may involve multiple aldol reactions 2) Explain, in your own words, how the following reaction can be carried out to obtain the product shown selectively. 3) о он
D8 April 9, 2019 Draw the starting materials for the compound given below via directed aldol condensation reaction. resonance structure for the following, α,β-unsaturated ketone. 1. Show the 2. Propose reagents or products as needed (you will need sets of reagents for arrows pointing left and 1 product for the right facing arrow). H3C-SH CH3 HO
6. Identify the aldehyde or ketone needed to make each of the following compounds via an aldol condensation. (a) CHO
Fill in the intermediate or starting materials for the retrosynthesis problems below. ignore what is already written. thanks! HA LA 12) (15 pts) Fill in the intermediate or starting materials for the retrosynthesis problems below: Aldol Condensation Conjugate Addition da = ca. z. a, venen ca + + (CH3 Culi GH 04 T 1 NaOH and + - heat
Suggest the starting material needed to make the following β-dicarbonyl compound by a Claisen condensation.
Both compounds are to go through aldol condensation and conjugate addition 12) (15 pts) Fill in the intermediate or starting materials for the retrosynthesis problems below: Aldol Condensation Conjugate Addition
Give the starting carbonyl compounds needed to prepare the following compounds through an aldol condensation. 4. b. CaHs c. d.
Problem 2. Provide the structures of the starting materials necessary to form the following compounds via an aldol condensation, Claisen condensation, or Wittig reaction. Use each reaction once, and indicate which reaction you are proposing. For some reactions, there may be multiple correct answers (provide only one).