Zwitterionic Iron(II) Compounds: Synthesis, Reactivity, and Catalytic Carbonylative Polymerization of Cyclic Ethers

Yiwei Dai; Jingqing Lyu; Linhui Zhu; Briana R. Schrage; Christopher J. Ziegler; Li Jia

doi:10.1021/acs.organomet.1c00463

Zwitterionic Iron(II) Compounds: Synthesis, Reactivity, and Catalytic Carbonylative Polymerization of Cyclic Ethers

Yiwei Dai, Jingqing Lyu, Linhui Zhu, Briana R. Schrage, Christopher J. Ziegler, Li Jia

Research output: Contribution to journal › Article › peer-review

Abstract

The generality of the zwitterionic strategy to design catalysts for carbonylative polymerization of cyclic ethers has been validated by applying it to Fe. The acyl group of the zwitterionic Fe catalyst is less electrophilic than that of the zwitterionic Ni catalyst, but the thermal stability of the octahedral Fe complex allows the copolymerization to be carried out at relatively high temperatures. The selectivity for carbonylative enchainment achieved at such temperatures with the Fe catalyst is markedly better than that previously achieved with the Ni analogs at room temperature.

Original language	English
Pages (from-to)	3361-3364
Number of pages	4
Journal	Organometallics
Volume	40
Issue number	20
DOIs	https://doi.org/10.1021/acs.organomet.1c00463
State	Published - Oct 25 2021
Externally published	Yes

Funding

We thank the National Science Foundation (CHE-1900430) for supporting this work.

Funders	Funder number
National Science Foundation	CHE-1900430

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10.1021/acs.organomet.1c00463

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title = "Zwitterionic Iron(II) Compounds: Synthesis, Reactivity, and Catalytic Carbonylative Polymerization of Cyclic Ethers",

abstract = "The generality of the zwitterionic strategy to design catalysts for carbonylative polymerization of cyclic ethers has been validated by applying it to Fe. The acyl group of the zwitterionic Fe catalyst is less electrophilic than that of the zwitterionic Ni catalyst, but the thermal stability of the octahedral Fe complex allows the copolymerization to be carried out at relatively high temperatures. The selectivity for carbonylative enchainment achieved at such temperatures with the Fe catalyst is markedly better than that previously achieved with the Ni analogs at room temperature.",

author = "Yiwei Dai and Jingqing Lyu and Linhui Zhu and Schrage, {Briana R.} and Ziegler, {Christopher J.} and Li Jia",

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AU - Dai, Yiwei

AU - Lyu, Jingqing

AU - Zhu, Linhui

AU - Schrage, Briana R.

AU - Ziegler, Christopher J.

AU - Jia, Li

PY - 2021/10/25

Y1 - 2021/10/25

N2 - The generality of the zwitterionic strategy to design catalysts for carbonylative polymerization of cyclic ethers has been validated by applying it to Fe. The acyl group of the zwitterionic Fe catalyst is less electrophilic than that of the zwitterionic Ni catalyst, but the thermal stability of the octahedral Fe complex allows the copolymerization to be carried out at relatively high temperatures. The selectivity for carbonylative enchainment achieved at such temperatures with the Fe catalyst is markedly better than that previously achieved with the Ni analogs at room temperature.

AB - The generality of the zwitterionic strategy to design catalysts for carbonylative polymerization of cyclic ethers has been validated by applying it to Fe. The acyl group of the zwitterionic Fe catalyst is less electrophilic than that of the zwitterionic Ni catalyst, but the thermal stability of the octahedral Fe complex allows the copolymerization to be carried out at relatively high temperatures. The selectivity for carbonylative enchainment achieved at such temperatures with the Fe catalyst is markedly better than that previously achieved with the Ni analogs at room temperature.

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Zwitterionic Iron(II) Compounds: Synthesis, Reactivity, and Catalytic Carbonylative Polymerization of Cyclic Ethers

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