Concept explainers
Interpretation: Starting material and reagents required to prepare the given epoxide need to be identified.
Concept introduction:
Preparation of epoxide-
Peroxy acids generally used in this process are MCPBA and peroxyacetic acid. The formation of epoxide via peroxy acid is a stereospecific process; thus, cis substituents in alkene (starting material) remain at cis to each other in the epoxide (product). Similarly, trans substituents in alkene remain at trans to each other.
The preparation of epoxides from halohydrins can simply take place upon treatment with a strong base. Here, halohydrin can be formed from alkene after treatment with a halogen in the presence of water.
The reactions involved in the preparation are as follows
The above reaction takes place via intramolecular

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Chapter 13 Solutions
ORGANIC CHEMISTRY-PRINT MULTI TERM
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