Chemistry of the aromatic heterocycles

1226 CHAPTER 25 • THE CHEMISTRY OF THE AROMATIC …

1228 CHAPTER 25 • THE CHEMISTRY OF THE AROMATIC HETEROCYCLES Pyrrole, furan, and thiophene are all much more reactive than benzene in electrophilic aro-matic substitution. Although precise reactivity ratios depend on the particular reaction, the rel-

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Professor J. Stephen Clark - School of Chemistry

5 Introduction • Heterocycles contain one or more heteroatoms in a ring • Aromatic, or partially or fully saturated – this co urse will focus on aromatic systems

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Hour Examination 1 - Paul Bracher

CHEM 347 – Hour Examination #1 – Spring 2014 Page 3 of 8 (3) _____ Purine (B) is the parent compound of a class of heterocycles common in biochemistry. Which of the nitrogen atoms in purine is not sp2 hybridized? (a) i

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Elektrophile, nucleophile und radikalische Substitutionen ...

7. Elektrophile, nucleophile und radikalische Substitutionen an Aromaten I.O.C-Praktikum Übersicht • Benzol ist der klassische Vertreter aromatischer Verbindungen, es besitzt ein cyclisch

Multicomponent Reaction (MCR)

point of view, thus, the reaction above is an extremely useful and eco-friendly MCR. Thus, MCR is a strong synthetic methodology to enable condensation of various substrates in one pot, however, in some