Issue 26, 2019

Unveiling reactive metal sites in a Pd pincer MOF: insights into Lewis acid and pore selective catalysis

Abstract

A porous Zr metal–organic framework, 1-PdBF4 [Zr6O4(OH)4(OAc)2.4{(PNNNP)Pd(MeCN)}2.4(BF4)2.4; PNNNP = 2,6-(HNPAr2)2C5H3N; Ar = p-C6H4CO2], has been synthesized via postsynthetic oxidative I/BF4 ligand exchange using NOBF4. 1-PdBF4 enjoys markedly superior catalytic activity and recyclability to its trifluoracetate-exchanged analogue, 1-PdTFA, for the intramolecular cyclization of o-alkynyl anilines and the carbonyl–ene cyclization of citronellal. Moreover, 1-PdBF4 demonstrates a rare example of pore selective catalysis for the cyclization of 2-ethynyl aniline.

Graphical abstract: Unveiling reactive metal sites in a Pd pincer MOF: insights into Lewis acid and pore selective catalysis

Supplementary files

Article information

Article type
Paper
Submitted
19 Sep 2018
Accepted
13 Nov 2018
First published
13 Nov 2018

Dalton Trans., 2019,48, 9588-9595

Unveiling reactive metal sites in a Pd pincer MOF: insights into Lewis acid and pore selective catalysis

B. R. Reiner, A. A. Kassie and C. R. Wade, Dalton Trans., 2019, 48, 9588 DOI: 10.1039/C8DT03801E

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