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- d. Draw arrow-pushing mechanism for an enzymatic retro-aldol reaction of the following hexose. Use B: and/or HA as needed. ОН OH OH мен ОН ОН ОНa. Draw the structure of the tetrahedral intermediate INITIALLY FORMED in the reaction shown. b. Draw the structures of the final acyl transfer products obtained. + CH3CH₂OH H₂SO4ArSO,H Draw curved arrows to show the movement of electrons in the following step of an acid-catalyzed aldol condensation reaction. Arrow-pushing Instructions Hjö: H-Ö- -Ar H. Ar O=h=0
- In micxed aldol condensation of acetone with excess benzaldehyde in the presence of MaOH: why benzaldehyde not condense with itself? it's conjugate base is too weak its conjugate base is too strong it contains no a-carbons it contains no a-hydrogensc) Aldol – from start to finish NaOEt, ETOHI need help with problems
- Draw all potential aldol renction produets. you exuude stereachmisty and may that no condensaton reuction asSume occur NaocHzcH3 t aldol reautionDraw a complete stepwise mechanism for the aldol self-condensation reaction shown below. You must show the structures of all intermediates and indicate electron flow with curly arrows(a) Draw a mechanism using the curved arrow-formalism for the O-4 methylation of thymine. Is thenucleophilic substitution in the first step an SN1 or SN2 reaction? Explain.
- Devise a synthesis of CH3CH2CH2CHO from two-carbon starting materials. Draw both the retrosynthesis and the forward synthesis.Q1: Product of aldol condensation H 0^6= + NaOH Ethanol A) B) C) D) ör ör od or13.Draw the Fisher projection of the monosaccharide which gives the two diastereomeric aldoses upon chain-extension with 1. HCN/KOH 2. H₂/Pd 3. H30+ НО НО CHO -OH CH2OH НО CHO OH OH CH2OH
