3938-96-3Relevant articles and documents
A stable and porous iridium(III)-porphyrin metal-organic framework: Synthesis, structure and catalysis
Cui, Hao,Wang, Yingxia,Wang, Yanhu,Fan, Yan-Zhong,Zhang, Li,Su, Cheng-Yong
, p. 2203 - 2209 (2016/03/30)
Self-assembly of a new metalloporphyrin tetracarboxylic ligand Ir(TCPP)Cl (TCPP = tetrakis(4-carboxyphenyl)porphyrin) with ZrCl4 in the presence of benzoic acid leads to the formation of a three-dimensional (3D) iridium(III)-porphyrin metal-organic framework (Ir-PMOF) with the formula of [(Zr6(μ3-O)8(OH)2(H2O)10)2(Ir(TCPP)Cl)3]·solvents (Ir-PMOF-1(Zr)), which possesses square-shaped channels of 1.9 × 1.9 nm2 (atom-to-atom distances across opposite Ir metal atoms) in three orthogonal directions as disclosed by the single-crystal X-ray diffraction analysis. Ir-PMOF-1(Zr) represents the first MOF bearing a self-supporting iridium-porphyrin catalytic framework, featuring high porosity and stability. The catalytic tests disclose that the activated Ir-PMOF-1(Zr) can promote O-H insertion with a turnover frequency (TOF) up to 4260 h-1. Ir-PMOF-1(Zr) can be recycled and reused for 10 runs without significant loss of catalytic activity, and the total turnover number (TON) for O-H insertion after 10 successive runs reaches 875.
Efficient and catalyst-free condensation of acid chlorides and alcohols using continuous flow
Van Waes, Frederik E. A.,Cukalovic, A.,Stevens, Christian V.,Drabowicz, J.
, p. 2776 - 2779,4 (2020/09/14)
An efficient, catalyst-free continuous flow procedure for the condensation of acid chlorides and alcohols was developed. Different esters could be obtained using this protocol with excellent conversions starting from the corresponding acid chlorides and alcohols in very short reaction times (5-7 min). The reaction was performed solventless for liquid reagents but requires a solvent for solid reagents in order to prevent clogging of the microreactor. Since no catalyst is needed, the purification of the reaction mixture is very straightforward. Scale-up of the reaction to a microreactor with an internal volume of 13.8 ml makes it possible to produce 2.2 g min-1 of ester with an isolated yield of 98% and recuperation of the formed HCl.
Gold(i) "click" 1,2,3-triazolylidenes: Synthesis, self-assembly and catalysis
Kilpin, Kelly J.,Paul, Ursula S. D.,Lee, Ai-Lan,Crowley, James D.
supporting information; experimental part, p. 328 - 330 (2011/03/17)
Novel gold(i) "click" carbene(1,2,3-triazolylidene) complexes have been synthesised, characterised and exploited for the self-assembly of a metallomacrocycle and as precatalysts for gold(i)-catalysed reactions.
