Alkoxycarbonylation and phenoxycarbonylation reactions catalyzed by a palladium(II) organometallic complex encaged in Y zeolite

Hui, Mei; Xiao, Se; Zhu, Tianwu; Lei, Yizhu; Li, Guangxing

doi:10.1007/s11243-014-9818-9

Cited by 9 publications

(1 citation statement)

References 24 publications

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“…Therefore, it is advantageous to develop a heterogeneous catalytic system that can easily be separated from the reaction mixture and can be recycled several times. In this regard, several groups disclosed the use of palladium supported on triphenylphosphine functionalized porous organic polymer, Charcoal, Imm‐IL, silica support and PdCl 2 (phen)@Y for phenoxycarbonylation. Various CO surrogates have been utilized for the synthesis of aromatic esters.…”

Section: Introductionmentioning

confidence: 99%

Oxime palladacycle in PEG as a highly efficient and recyclable catalytic system for phenoxycarbonylation of aryl iodides with phenols

Gaikwad

Bhanage

2019

Applied Organom Chemis

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In this report, we have developed a sustainable protocol for the synthesis of aromatic esters by a carbonylative method using di‐μ‐chlorobis [5‐hydroxy‐2‐[1‐(hydroxyimino‐ĸN) ethyl] phenyl‐ĸC] palladium (II) dimer (1) catalyst in PEG‐400 as a greener and recyclable solvent. The reaction is carried out at room temperature using CO in a balloon. Good to excellent yield of various esters can be synthesize using this protocol. Direct insertion of CO moiety leads to the high atom and step economy. Compared to previous protocol this phosphine free approach for the synthesis of aromatic esters provides high Turnover Number (TON) and Turnover Frequency (TOF). Developed approach has an alternative route for use of conventional palladium precursor with high conversion and selectivity. The catalyst system and product can easily be separated using diethyl ether as a solvent. The Pd/PEG‐400 system could be reused up to a fifth consecutive cycle without any loss of its activity and selectivity.

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