Metal iridium photocatalyst as well as preparation method and application thereof

• Main Authors: HAO TONGCHUAN, MA QING, YUAN YUBO, PAN JIEFENG, HU YANJUN, YU XIAOHONG
• Format: Patent
• Language: Chinese; English
• Published: 10.06.2022
• Subjects: ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; HETEROCYCLIC COMPOUNDS; METALLURGY; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention discloses a metal iridium photocatalyst and a preparation method and application thereof.The molecular formula of the metal iridium photocatalyst is C34H22F14IrN4P. The preparation method of the metal iridium photocatalyst comprises the steps that an intermediate I synthesized by 2-bromopyridine and 4-fluorophenylboronic acid serves as a ligand and is subjected to a coordination reaction with an iridium compound to generate an intermediate II, and then the intermediate II and 4, 4-bis (trifluoromethyl)-2, 2-dipyridyl or 5, 5-dipyridyl are subjected to a reaction to generate the metal iridium photocatalyst. The preparation method comprises the following steps: reacting 2, 5-bis (trifluoromethyl)-2, 2-dipyridyl to obtain an intermediate III, and finally replacing chlorine with PF6 by using an ammonium hexafluorophosphate aqueous solution to obtain the metal iridium photocatalyst. The prepared photocatalyst is applied to an alkylation reaction with tetrahydrofuran or N-Boc pyrrolidine as a substrat