In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Chlorine-Influenced Changes in the Molecular Inclusion and Packing Properties of a Diquinoline Host, published in 2007-01-31, which mentions a compound: 20028-53-9, Name is 2-Amino-5-chlorobenzaldehyde, Molecular C7H6ClNO, Recommanded Product: 2-Amino-5-chlorobenzaldehyde.
Chloro-substituted diquinoline dibromide 6 is a versatile host mol. that includes guest mols. of different functionality in several different ways. The crystal structures of 6 and its lattice inclusion compounds with carbon disulfide, dichloromethane, acetone, chloroform, benzene, and toluene are reported and analyzed in crystal engineering terms. Also described is the quinolinium inclusion compound (11)·(acetophenone). The inclusion properties of 6, and the ways that it achieves these, are very different from those of its non-chlorinated parent, 4. Different types of aromatic interfacial packing are discussed. There is far greater dependence on these types of interactions and a complete absence of the aromatic edge-edge C-H···N dimer motif in the crystal structures of 6.
Different reactions of this compound(2-Amino-5-chlorobenzaldehyde)Recommanded Product: 2-Amino-5-chlorobenzaldehyde require different conditions, so the reaction conditions are very important.
Reference:
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem