The alkene from which the alcohol shown can be prepared is to be stated. Among the two, epoxide hydrolysis and OsO 4 , the method which can be used to prepare the diol also is to be stated. Concept introduction: During epoxidation an oxygen atom is transferred to the double bond in alkene with syn stereochemistry. Both C-O bonds are formed o the same face of the double bond. The epoxides undergo a acid catalyzed hydrolysis during which the ring is opened to give a trans- 1,2-diol. The hydroxylation with OsO 4 also occurs with syn stereochemistry. The addition of OsO 4 to the alkene gives a cyclic osmate which is then cleaved by using aqueous NaHSO 3 to yield a cis- 1,2-diol. To state: The alkene from which the alcohol shown can be prepared. Further to state among the methods, epoxide hydrolysis and OsO 4 , which can be used to prepare the diol.

Question

Want to see the full answer?

Answer 1

Question

Chapter 8.SE, Problem 25VC

Interpretation Introduction

Interpretation:

The alkene from which the alcohol shown can be prepared is to be stated. Among the two, epoxide hydrolysis and OsO₄, the method which can be used to prepare the diol also is to be stated.

Concept introduction:

During epoxidation an oxygen atom is transferred to the double bond in alkene with syn stereochemistry. Both C-O bonds are formed o the same face of the double bond. The epoxides undergo a acid catalyzed hydrolysis during which the ring is opened to give a trans-1,2-diol.

The hydroxylation with OsO₄ also occurs with syn stereochemistry. The addition of OsO₄ to the alkene gives a cyclic osmate which is then cleaved by using aqueous NaHSO₃ to yield a cis-1,2-diol.

To state:

The alkene from which the alcohol shown can be prepared. Further to state among the methods, epoxide hydrolysis and OsO₄, which can be used to prepare the diol.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

Vnk the elements or compounds in the table below in decreasing order of their boiling points. That is, choose 1 next to the substance with the highest bolling point, choose 2 next to the substance with the next highest boiling point, and so on. substance C D chemical symbol, chemical formula or Lewis structure. CH,-N-CH, CH, H H 10: H C-C-H H H H Cale H 10: H-C-C-N-CH, Bri CH, boiling point (C) Сен (C) B (Choose

Please help me find the 1/Time, Log [I^-] Log [S2O8^2-], Log(time) on the data table. With calculation steps. And the average for runs 1a-1b. Please help me thanks in advance. Will up vote!

Q1: Answer the questions for the reaction below: ..!! Br OH a) Predict the product(s) of the reaction. b) Is the substrate optically active? Are the product(s) optically active as a mix? c) Draw the curved arrow mechanism for the reaction. d) What happens to the SN1 reaction rate in each of these instances: 1. Change the substrate to Br "CI 2. Change the substrate to 3. Change the solvent from 100% CH3CH2OH to 10% CH3CH2OH + 90% DMF 4. Increase the substrate concentration by 3-fold.