Transesterification of cellulose with unactivated esters in superbase-acid conjugate ionic liquids

Aleksandar R. Todorov; Alistair W.T. King; Ilkka Kilpeläinen

doi:10.1039/d2ra08186e

Transesterification of cellulose with unactivated esters in superbase-acid conjugate ionic liquids

Aleksandar R. Todorov (Corresponding Author), Alistair W.T. King, Ilkka Kilpeläinen

BA5407 Bioinspired materials

University of Helsinki

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

5 Citations (Scopus)

Abstract

A sustainable homogeneous transesterification protocol utilizing the superbase ionic liquid [mTBNH][OAc] and unactivated methyl esters has been developed for the preparation of cellulose esters with controllable degree of substitution. [mTBNH][OAc] shows excellent recyclability with a high recovery of sufficient purity for repeated use. This reaction media allows for cellulose transesterification reactions not only using activated or cyclic esters, but also with unactivated methyl esters, which extends the substrate and application scope. Furthermore, the solubility properties of the prepared cellulose materials were tested and some intrinsic trends were observed at low degrees of substitution.

Original language	English
Pages (from-to)	5983-5992
Number of pages	10
Journal	RSC Advances
Volume	13
Issue number	9
DOIs	https://doi.org/10.1039/d2ra08186e
Publication status	Published - 17 Feb 2023
MoE publication type	A1 Journal article-refereed

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10.1039/d2ra08186eLicence: CC BY

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title = "Transesterification of cellulose with unactivated esters in superbase-acid conjugate ionic liquids",

abstract = "A sustainable homogeneous transesterification protocol utilizing the superbase ionic liquid [mTBNH][OAc] and unactivated methyl esters has been developed for the preparation of cellulose esters with controllable degree of substitution. [mTBNH][OAc] shows excellent recyclability with a high recovery of sufficient purity for repeated use. This reaction media allows for cellulose transesterification reactions not only using activated or cyclic esters, but also with unactivated methyl esters, which extends the substrate and application scope. Furthermore, the solubility properties of the prepared cellulose materials were tested and some intrinsic trends were observed at low degrees of substitution.",

author = "Todorov, {Aleksandar R.} and King, {Alistair W.T.} and Ilkka Kilpel{\"a}inen",

note = "Funding Information: Financial support from the Business Finland (Valcel, Project No. 43864/31/2020) is gratefully acknowledged. Publisher Copyright: {\textcopyright} 2023 The Royal Society of Chemistry.",

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AU - Kilpeläinen, Ilkka

PY - 2023/2/17

Y1 - 2023/2/17

N2 - A sustainable homogeneous transesterification protocol utilizing the superbase ionic liquid [mTBNH][OAc] and unactivated methyl esters has been developed for the preparation of cellulose esters with controllable degree of substitution. [mTBNH][OAc] shows excellent recyclability with a high recovery of sufficient purity for repeated use. This reaction media allows for cellulose transesterification reactions not only using activated or cyclic esters, but also with unactivated methyl esters, which extends the substrate and application scope. Furthermore, the solubility properties of the prepared cellulose materials were tested and some intrinsic trends were observed at low degrees of substitution.

AB - A sustainable homogeneous transesterification protocol utilizing the superbase ionic liquid [mTBNH][OAc] and unactivated methyl esters has been developed for the preparation of cellulose esters with controllable degree of substitution. [mTBNH][OAc] shows excellent recyclability with a high recovery of sufficient purity for repeated use. This reaction media allows for cellulose transesterification reactions not only using activated or cyclic esters, but also with unactivated methyl esters, which extends the substrate and application scope. Furthermore, the solubility properties of the prepared cellulose materials were tested and some intrinsic trends were observed at low degrees of substitution.

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ER -

Transesterification of cellulose with unactivated esters in superbase-acid conjugate ionic liquids

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