Oxaloacetic acid is an important intermediate in the biosynthesis of citric acid. Synthesize oxaloacetic acid using a mixed Claisen condensation as a key carbon-carbon bond forming reaction. (5) LOH HO 0 oxaloacetic acid
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- Octinoxate is an unsaturated ester used as an active ingredient in sunscreens. (a) What carbonyl compounds are needed to synthesize this compound using a condensation reaction? (b) Devise a synthesis of octinoxate from the given organic starting materials and any other needed reagents.Provide the IUPAC name for the following carbonyl compounds?(a) Give an acceptable name for compound A. (b) Draw the organic products formed when A is treated with each reagent: [1] H3O+; [2] −OH, H2O; [3] CH3CH2CH2MgBr (excess), then H2O; [4] LiAlH4, then H2O.
- 2-Methylbutanoic acid is a weak organic acid that exists as two different optical isomers. One has a sweet, fruity odour, and the other has a cheesy, sweaty odour. Like other small carboxylic acids, it is used to make pleasant smelling esters that are used in perfumes, cosmetics, and food additives. (5)-2-methylbutanoic (RI-2-methylbutanoic acid acid The K, of 2-methylbutanoic acid is 1.58x10-5.(1) Which of the following choices is the identity ROH? (2) Which of the following choices if the identity of CARBONYL?Acyclovir is an effective antiviral agent used to treat the herpes simplexvirus. (a) Draw the enol form of acyclovir, and explain why it is aromatic.(b) Why is acyclovir typically drawn in its keto form, despite the fact thatits enol is aromatic?
- Arrange each group of compounds in order of increasing acidity.(b) p-toluenesulfonic acid, acetic acid, chloroacetic acid(c) Draw the structure of the hemi-acetal and acetal formed when cyclohexanone is combined with methanol in the presence of catalytic acid.18.31 Aldehydes that have no a hydrogen undergo an intermolecular oxidation-reduction called the Cannizzaro reaction when they are treated with concentrated base. An example is the following reaction of benzaldehyde: ororo H HO™ OH H₂O 2 + (a) When the reaction is carried out in D₂O, the benzyl alcohol that is isolated contains no deuterium bound to carbon. It is CBH-CH₂OD. What does this suggest about the mechanism for the reaction? (b) When (CH3)2CHCHO and Ba(OH)₂/H₂O are heated in a sealed tube, the reaction produces only (CH3)₂CHCH₂OH and [(CH3)₂CHCO₂]2Ba. Provide an explanation for the formation of these products.