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Cellulose carbamates via transcarbamoylation/transurethanization of methyl carbamates in superbase-acid conjugate ionic liquids.

ABSTRACT: A sustainable homogeneous transcarbamoylation/transurethanization protocol for cellulose modification with methyl N-substituted carbamates was developed. The protocol utilizes the superbase ionic liquid [mTBNH][OAc], not only as a green reaction medium, but also as a promotor of the transformation. This approach allows to obtain different cellulose carbamates with controllable degrees of substitution. The solubility of the obtained materials from the newly developed method was compared with the solubility of materials obtained from the isocyanate approach, where some intrinsic trends were observed.

SUBMITTER: Todorov AR 

PROVIDER: S-EPMC11262085 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature

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Cellulose carbamates <i>via</i> transcarbamoylation/transurethanization of methyl carbamates in superbase-acid conjugate ionic liquids.

Todorov Aleksandar R AR   Dryś Magdalena M   Gazagnaire Eva E   Podder Manisha M   Kilpeläinen Ilkka I  

RSC advances 20240722 32

A sustainable homogeneous transcarbamoylation/transurethanization protocol for cellulose modification with methyl <i>N</i>-substituted carbamates was developed. The protocol utilizes the superbase ionic liquid [mTBNH][OAc], not only as a green reaction medium, but also as a promotor of the transformation. This approach allows to obtain different cellulose carbamates with controllable degrees of substitution. The solubility of the obtained materials from the newly developed method was compared wi  ...[more]

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