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pls help there are supposed to be two drawings
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- Aldehydes and ketones undergo acid-catalyzed reaction with alcohols to yield hemiacetals, compounds that have one alcohol-like oxygen and one ether-like oxygen bonded to the same carbon. Further reaction of a hemiacetal with alcohol then yields an acetal, a compound that has two ether-like oxygens bonded to the same carbon. (a) Show the structures of the hemiacetal and acetal you would obtain by reaction of cyclohexanone with ethanol. (b) Propose a mechanism for the conversion of a hemiacetal into an acetal.Compound A on ozonolysis yields the two products shown. What is the structure of compound A? Compound A 1.03 2. (CH3)2S ||| ol H H || IV H HShow how the following starting material is converted to the given product by a series of two pericyclic reactions. Account for the observed stereochemistry.
- When 2-bromo-3-phenylbutane is treated with sodium methoxide, two alkenes result (by E2 elimination). The Zaitsevproduct predominates.(a) Draw the reaction, showing the major and minor products.(b) When one pure stereoisomer of 2-bromo-3-phenylbutane reacts, one pure stereoisomer of the major product results.For example, when (2R,3R)-2-bromo-3-phenylbutane reacts, the product is the stereoisomer with the methyl groups cis.Use your models to draw a Newman projection of the transition state to show why this stereospecificity is observed.(c) Use a Newman projection of the transition state to predict the major product of elimination of (2S,3R)-2-bromo-3-phenylbutaneShow how the following starting materials are converted to the given product by a series of two pericyclic reactions. Account for the observed stereochemistry.conjugated ring with alcohol reacts with I2, NaHCO3 with CH2Cl2 and H2O. What will be the product?
- When 2-bromo-3-phenylbutane is treated with sodium methoxide, two alkenes result (by E2 elimination). The Zaitsevproduct predominates.(a) Draw the reaction, showing the major and minor products.(b) When one pure stereoisomer of 2-bromo-3-phenylbutane reacts, one pure stereoisomer of the major product results.For example, when (2R,3R)-2-bromo-3-phenylbutane reacts, the product is the stereoisomer with the methyl groups cis.Use your models to draw a Newman projection of the transition state to show why this stereospecificity is observedDevise a synthesis of (E)-tetradec-11-enal, a sex pheromone of the spruce budworm, a pest that destroys fir and spruce forests, from acetylene, Br(CH2)10OH, and any needed organic compounds or inorganic reagents.The following alkene is treated with one equivalent of N-Bromosuccinimide in dichloromethane in the presence of light to give bromination product(s). Draw a line-angle formula for each product formed.
- Draw the major organic product(s) of the following reactions including stereochemistry when it is appropriate. -CH₂-CEC-H H₂O/H₂SO4 /HgOWhen 2-bromo-3-phenylbutane is treated with sodium methoxide, two alkenes result (by E2 elimination). The Zaitsevproduct predominates.(a) Draw the reaction, showing the major and minor productsDevise a synthesis of (E)-tetradec-11-enal, a sex pheromone of the spruce budworm, a pest that destroys r and spruce forests, from acetylene, Br(CH2)10OH, and any needed organic compounds or inorganic reagents.