Interpretation:
The
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
The hydroxylation with OsO4 also occurs with syn stereochemistry. The addition of OsO4 to the alkene gives a cyclic osmate which is 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 epoxide hydrolysis and OsO4, the method which can be used to prepare the diol.
Trending nowThis is a popular solution!
Chapter 8 Solutions
Organic Chemistry
- The transformation takes place via two sequential pericyclic reactions. Identify the two reactions and give a critical explanation whether the reactions are allowable or not. Explain the stereochemistry.arrow_forwardwhat are the products? please indicate the relative stereochemistry for the following transformations and indicate the major product.arrow_forwardWhen the given alkene undergoes hydroboration followed by oxidation, which would be produced in regards to the products stereochemistry a. A mix of diastereomers b. A single enantiomer c. A racemic mixture d. An achiral productarrow_forward
- Which statement best describes the stereochemistry of the product?arrow_forwardTwo products are formed when methylenecyclohexane reacts with NBS? Show how each is formed. Disregard stereoisomers.arrow_forwardPredict the products of the following reactions, showing stereochemistry where appropriate.arrow_forward
- Consider a reaction where cis-but-2-ene is treated with OsO4 followed by NaHSO3/H2O. Draw the structure of one product that is formed in the reaction, including correct stereochemistry.arrow_forwardIdentify the following pericyclic reaction; explain the course, product distribution and stereochemistry of the reaction. Where the first product is produced 70% and the second product is produced 30%.arrow_forwardThe hydroboration–oxidation of internal alkynes produces ketones.(a) When hydroboration–oxidation is applied to but-2-yne, a single pure product isobtained. Determine the structure of this product, and show the intermediates in itsformation.arrow_forward