30089-66-8

Upstream product

• 1206-55-9 3,6-dimethoxy-2-nitrobenzaldehyde 
• 100-53-8 phenylmethanethiol 
• 536-74-3 phenylacetylene 
• 107135-56-8 2-bromo-1,4-dimethoxy-3-(phenylethynyl)benzene 

Downstream Products

• 30089-65-7 2-phenyl-benzo[b]thiophene-4,7-dione 
• 30089-67-9 2-phenyl-benzo[b]thiophene-4,7-diol 

Relevant academic research and scientific papers

Liquid crystal compound, liquid crystal composition, polymer and application

The invention a liquid crystal compound, a liquid crystal composition and a polymer and application which can suppress refractive index anisotropism due to wave lengths, display low wavelength dispersion characteristics and further display inverse wavelength dispersion. The invention discloses the compound expressed by the formula (1) and the liquid crystal composition containing the compound.

A practical, one-pot synthesis of highly substituted thiophenes and benzo[b]thiophenes from bromoenynes and o-alkynylbromobenzenes

An efficient synthesis of thiophenes and benzo[b]thiophenes has been developed from easily available bromoenynes and o-alkynylbromobenzene derivatives. This novel one-pot procedure involves a Pd-catalyzed C-S bond formation using a hydrogen sulfide surrogate followed by a heterocyclization reaction. Moreover, in situ functionalization with selected electrophiles further expands the potential of this methodology to the preparation of the corresponding highly substituted sulfur heterocycles.