Calculate theoretical yield of 1 (0.25 g) acetone and 2 (1.0 ml) benzaldehyde in a mixed aldol condensation reaction producing 1 dibenzalacetone (enone) + 2 H2O.
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- The product of reaction between formaldehyde with 2-methyl propanal give 2,2-dimethyl-3-hydroxy propanal 2,2-dimethyl-3-hydroxy propanone 2,2-dimethyl-3-hydroxy propanoic acid 2,2-dimethyl-3-hydroxy propanol 4-phenyl-3-buten-2-one prepared from reaction between Benzaldehyde with acetic acid Benzaldehyde with acetaldehyde Benzaldehyde with formaldehyde Benzaldehyde with acetone Which predict product for reaction between heptane-6-one-1-al with sodium hydroxide * 1-(2-hydroxycyclopentyl) pentanone 1-(2-hydroxycyclopentyl) butanone 1-(2-hydroxycyclopentyl) ethanone 1-(2-hydroxycyclopentyl) propanoneIdentify the best reagents to complete the following reaction.In the Grignard reaction. The benzoic acid product (abbreviate PHCO2H) was separated from the impurity biphenyl (abbreviated Ph-Ph) through an extraction with aqueous NAOH which deprotonated benzoic acid and converted it into sodium benzoate (abbreviated PHCO2NA). After the Grignard reagent, phenylmagnesium bromide was mixed with CO2, it was mixed with additional ether and 6M H,SO4. This gave a two phase liquid mixture. What was dissolved in the top layer? Select all answers that are appropriate. There may be one or more. PHCO,H NaCI PHCO Na Ph-Ph PHCO,MgBr 00000
- 2 Moin H3C H H₂C C⇒x= base :0: OH Hori 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. Under reaction conditions slightly more vigorous than those employed for the aldol reaction, the ß-hydroxyl group is eliminated in an E1cB dehydration to give an a,ß-unsaturated carbonyl compound. Draw curved arrows to show the movement of electrons in this step of the mechanism. Arrow-pushing Instructions H₂C Ἡ :0: heat H Home H3C + H₂O2 H3C H3C H C→XT OH H3C 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 ß-hydroxy carbonyl compound. base :0: OH H H Under reaction conditions slightly more vigorous than those employed for the aldol reaction, the ß-hydroxyl group is eliminated in an E1cB dehydration to give an a,ß-unsaturated carbonyl compound. Draw curved arrows to show the movement of electrons in this step of the mechanism. Arrow-pushing Instruct ns H3C heat OH H3C :0: H + H₂O HFor the reaction shown below, 739 mg of 3-methoxyphenol, 852 mg of benzyl bromide, and excess sodium hydroxide are used to obtain 308 mg of 3-methoxyphenyl benzyl ether. What is the percent yield of 3-methoxyphenyl benzyl ether? HO NaOH Br ELOH 3-methoxyphenol MW = 124 g/mol; benzyl bromide MW = 171 g/mol; sodium hydroxide MW = 40.0 g/mol; 3-methoxyphenyl benzyl ether MW = 214 g/mol 35% 71% O 29% 74% 48%
- A chemist wanted to synthesize the anesthetic 2-ethoxy-2-methylpropane. He used ethoxide ion and 2-chloro-2-methylpropane for his synthesis and ended up with no ether. What was the product of his synthesis? What reagents should he have used?GIVE THE COMPLETE PRODUCT OF THE FOLLOWING REAGENTS.Because phenol (C6H5OH) is less acidic than a carboxylic acid, it can be deprotonated by NaOH but not by the weaker base NaHCO3. Using this information, write out an extraction sequence that can be used to separate C6H5OH, benzoic acid, and cyclohexanol. Show what compound is present in each layer at each stage of the process, and if it is present in its neutral or ionic form.
- Synthetize 3-phenyl-2-propenoic acid from benzaldehyde using whatever organic/inorganic reagents are needed. 3-phenyl-2-propenoic = 3-phenylacrylic acidMatch the following transformations (Organic I and II) with the appropriate reagents.1. An aldol reaction begins with addition of a catalytic amount of base to an aldehyde or ketone. Write the first step (formation of an enolate) of the reaction when a catalytic amount of NaOH is added to acetaldehyde. Base HH Z H 2. Continue the reaction in problem 1 showing reaction of the enolate with an unaffected molecule of acetaldehyde forming an alkoxide. Subsequent reaction with water yields a B-hydroxyaldehyde. OH -=7 H base H OH o ния H H टे H alo C The overall reaction in problems 1 and 2 is an aldol addition reaction. Each step is reversible. Write the mechanism for the reverse process converting the B-hydroxyaldehyde into two molecules of the original aldehyde. This process is a retro-aldol reaction. Use pK, values to explain why the process is reversible. -OH- e 7L Hlobia. Write the mechanism for reaction of butanone with catalytic aqueous NaOH. (Show each step with a reversible reaction arrow.)