1. Provide structures for the products and/or starting materials for the following reactions. Donor Acceptor NaOH CH₂CH₂OH heat loss of H₂O H3C mixed-aldol condensation product NaOH CH₂OH heat *) NOE EtOH #40 2) H₂O* ΕΙΟ CH₂ mixed-Claisen condensation product +HgC. H3C CHS H loss of H₂O mixed-aldol condensation product H3C людете CH3 NaOEt loss of H₂O intramolecular aldol condenstation cyclization product
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- Fill in the missing reagents a-e in the following scheme:1. Provide the mechanism of the reaction shown in the picture. 2. Explain why it cannot be done in basic conditions. 3. Why is the enol tautomer favored over the keto tautomer? Ph H3C OH H H3O+/H₂O HO H3C PhProvide a complete step-by-step mechanism for the following reaction. ОН Conc. H2SO4 heat
- Draw the structure of the hydroxyaldehyde product from the self-aldol reaction of each of the following aldehydes: (a) propanal; (b) phenylethanal; (c) 3-phenylpropanal; (d) benzaldehyde.resource from Cengage Learning - Google Chrome ssignment/takeCovalentActivity.do?locator=assignment-take e by the Aldol Condensation (References) OH base + H,0 heat H. H3C H. The aldol reaction is a carbonyl condensation reaction between two carbonyl partners and involves a combination of nucleophilic addition and a-substitution steps. One partner is converted into an enolate ion nucleophile and adds to the electrophilic carbonyl group of the second partner. In the classic aldol reaction, the carbonyl partners are aldehydes or ketones, although aldehydes are more reactive. The product is a B-hydroxy carbonyl compound. In the mixed aldol reaction, the best results are obtained when one of the partners does not have an a-hydrogen. It cannot form an enolate anion and can therefore not undergo self-reaction. The enolizable aldehyde is added slowly to a basic solution of the first aldehyde so that the mixed product is preferentially formed. Under reaction conditions slightly more vigorous…Provide the structure of the enamine synthesized from the following reaction. O. COMe + H3O+ Provide the structures of the products and draw the complete curved arrow mechanism for the hydrolysis of the indicated acetal OR imine in aqueous acid. HN-CHO Reaction mechanism: [H+] OR Enamine N H3O+
- Please give the appropriate reagents to complete the following synthesis.draw the reaction scheme and step by step reaction mechanism of the following please. a. williamson ether syhthesis of 4-chlorophenol using reagents K2CO3 and benzyl chloride b. reduction of aldehyde 2-propanol to propanone using reagents NABH4 c. aldol condensation of 4-chlorobenzaldehyde and dimethylmalonate using reagents NaOH and EtOHD) 2) What two organic starting materials are required to produce cinnamaldehyde (PHCH=CHCHO) via a crossed aldol condensation followed by dehydration? A) PHCH3 and CH3CHO B) PHCHO and CH3CH2CHO C) PHCHO and CH3CH2OH D) PHCHO and CH3CHO uart "nolizable ketone to its enolate