We developed a highly regioselective synthesis of multi‐substituted alkenylboronates via a heterogeneous ligand‐free nano‐copper catalyst that was highly dispersed and supported on the porous polyvinyl chloride. In this catalytic system, substituents on the terminal alkynes could affect the configuration of products. Terminal alkynes and general internal alkynes gave β‐selective borylation products, whereas heteroatom‐substituted alkynes like alkynamides, thioacetylenes, and ynol ethers gave α‐selective borylation products in good chemical yields with exclusive regioselectivity.

We have developed a versatile transitional metal-free cross-coupling reaction between fluorinated benzyl electrophiles and alkenylboronic acids in the presence of the equivalent amount of alkali metal salts such as K3PO4....

A series of fluoro-containing liquid crystal materials were synthesised at room temperature under aerobic conditions in excellent yields starting from fluoro-containing phenylboronic acids with aryl halides in the presence of a simple hydrophilic trans-PdCl 2 (NH 2 CH 2 COOH) 2 as catalyst via aqueous media Suzuki cross-coupling reactions. Details relevant to the above reactions and to the reaction sequences adopted to get the corresponding fluoro-containing liquid crystal materials are presented. The structures of above catalyst and liquid crystal materials were characterised by element analyses, electrospray mass spectra, 1 H NMR and 13 C NMR.