Chm 219 Module 7 Already Passed

What is the definition of a fused ring? {Ans: In a fused ring system, two (or more) rings are fused together to form a larger molecule. To be fused means that each ring shares two (or more) common atoms as a part of the structure of each ring.}Azoles {Ans: N in the place of C3 in Furan, pyrrole or Thiophene. Oxazole , Imidazole, Thiazole Inclusion of the N at C3 results in a pyridine-like nitrogen, which is involved in a pi bond. The lone pair on this N is this available for bonding to acidic proton.}Heterocycles {Ans: Cyclic organic molecules in which one or more carbon atoms are replaced by heteroatoms - elements other than C or H. Largest class of organic compounds known.}Fused Ring Heterocycles {Ans: Two or more rings are fused together to form a larger molecule. To be fused means that each ring shares two or more common atoms as a part of the structure of each ring.}Pyridine {Ans: Six membered heterocyclic analog of benzene. One of the CH units of the (benzene) ring is replaced by a N atom. Aromatic Tends to undergo substitution reactions rather than addition (which would destroy