1,7-Dibromoheptane was used in the synthesis of random thermotropic liquid crystalline copolyether1 and ternary copolyether. It was also used in the synthesis of thermotropic liquid crystalline dendrimer exhibiting a nematic phase. 1,7-Dibromoheptane was used in the synthesis of random thermotropic liquid crystalline copolyether1 and ternary copolyether. It was also used in the synthesis of thermotropic liquid crystalline dendrimer exhibiting a nematic phase.