Reactions of (polypyrazolylborato)(benzonitrile)rutheniums with terminal alkynes: Reactivity changeover by triethylamine toward arylalkyne polymerization or formation of (arylmethyl)(carbonyl) complexes

Abstract

Reactions of ( 3 -polypyrazolylborato)(benzonitrile)rutheniums --

Charged porous organic frameworks bearing heteroatoms with enhanced isosteric enthalpies of gas adsorption

“…Potassium tetrakis(4-bromopyrazolyl)borate was synthesized in accordance with previous reports. 17 Under an argon atmosphere, 4-bromopyrazole (4.4091 g, 30 mmol) and potassium borohydride (0.3236 g, 6 mmol) were mixed. Next, the mixture was heated gradually to 220 °C and kept for 11 h. Afterwards it was cooled down to room temperature, and the product dissolved in THF and filtered using a Nylon membrane, and the solvent was removed under reduced pressure.…”