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Chapter 3. Common Reaction Types in Heterocyclic Chemistry II. The Chemistry of Heterocyclic Compounds 雜環化學. Steve Sheng-Fa Yu Associate Research Fellow B601, Institute of Chemistry Academia Sinica.
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Chapter 3. Common Reaction Types in Heterocyclic Chemistry II The Chemistry of Heterocyclic Compounds雜環化學 Steve Sheng-Fa Yu Associate Research Fellow B601, Institute of Chemistry Academia Sinica
For five - membered, electron - rich heterocycles, the utility of electrophilic substitutions is much greater. Heterocycles such as pyrrole, thiophene and furan undergo a range of electrophilic substitutions with great ease, at either type of ring position, but with a preference for attack adjacent to the heteroatom – at their a- positions.