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- - Identify compounds J & K - Draw a curved arrow mechanism that accounts for the formation of J (take into account stereochemical considerations)Treatment of compound A (C8H17Br) with NaOCH2CH3 affords two constitutional isomers B and C. Ozonolysis of B affords CH2=O and (CH3CH2CH2)2C=O. Ozonolysis of C affords CH3CH2CH2COCH3 and CH3CH2CHO. What is the structure of A?-Ocimene is a pleasant-smelling hydrocarbon found in the leaves of certain herbs. It has the molecular formula C10H16 and a UV absorption maximum at 232 nm. On hydrogenation with a palladium catalyst, 2,6-dimethyloctane is obtained. Ozonolysis of -ocimene, followed by treatment with zinc and acetic acid, produces the following four fragments: (a) How many double bonds does -ocimene have? (b) Is -ocimene conjugated or nonconjugated? (c) Propose a structure for -ocimene. (d) Write the reactions, showing starting material and products.
- Treatment of compound A (C8H17Br) with NaOCH2CH3 affords twoconstitutional isomers B and C. Ozonolysis of B affords CH2=O and(CH3CH2CH2)2C=O. Ozonolysis of C affords CH3CH2CH2COCH3 andCH3CH2CHO. What is the structure of A?Account for the stereoselectivity and regioselectivity of the three steps in the conversion of compound C to compound F.When buta-1,3-diene (CH2 = CH – CH = CH2) is treated with HBr, two constitutional isomers are formed, CH3CHBrCH = CH2 and BrCH2CH = CHCH3. Draw a stepwise mechanism that accounts for the formation of both products.
- (Z)-9-Tricosene [(Z)-CH3(CH2)7CH CH(CH2)12CH3] is the sex pheromone of the female housefly. Synthetic (Z)-9-tricosene is used as bait to lure male flies to traps that contain insecticide. Using acetylene and alcohols of your choice as starting materials, along with any necessary inorganic reagents, show how you could prepare (Z)-9-tricosene.Compound X, C7H15Cl, is a chiral product of the radical chlorination of 2-methylhexane.Base-promoted E2 elimination of X gives a single product.What is the structure of X?Account for the regioselectivity and stereoselectivity observed when 1-methylcyclopentene is treated with reagent. Q) BH3
- Following is the structure of miconazole, the active antifungal agent in a number of over-the-counter preparations, including Monistat, that are used to treat vaginal yeast infections. One of the compounds needed for the synthesis of miconazole is the trichloro derivative of toluene shown on its right. (a) Show how this derivative can be synthesized from toluene. (b) How many stereoisomers are possible for miconazole?Following is the structural formula of Surfynol, a defoaming surfactant. Describe the synthesis of this compound from acetylene and a ketone. How many stereoisomers are possible for Surfynol?Write the structure of the compound E,E-2,4-Hexadien-1-ol and label each non-equivalent carbon with a letter, A,B,C..
