Concept explainers
Interpretation:
The alkyne, which, when treated with diazomethane and irradiated with UV light, will produce the given compound, is to be drawn. A full mechanism for the reaction is to be drawn.
Concept introduction:
A cyclopropyl ring can be introduced in a product by treating the corresponding alkene or alkyne with a carbene. A carbene is a reactive species with two groups, mostly hydrogens or halogens, bonded to a carbon that also has a lone pair of electrons. Since the carbon lacks an octet of electrons, it acts as an electrophile. At the same time, the lone pair on it also gives it a nucleophilic character. Carbenes react with
A carbene is a highly reactive, transient species and must be generated in situ. A common method of generating a carbene is to irradiate diazomethane with UV light. The
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ORGANIC CHEMISTRY E-BOOK W/SMARTWORK5
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