Synthesis of cyclic carbonates from diols and CO2 catalyzed by carbenes

The synthesis of cyclic carbonates from epoxides and CO2 is a well-established reaction, whereas the synthesis of cyclic carbonates from diols and CO2 is considerably more challenging, and few efficient catalysts are available. Here, we describe heterocyclic carbene catalysts, including one derived from a cheap and efficient thiazolium salt, for this latter reaction. The reaction proceeds at atmospheric pressure in the presence of an alkyl halide and Cs2CO3. Reaction mechanisms for the transformations involved are also proposed.


Publié dans:
Chemical Communications, 52, 71, 10787-10790
Année
2016
ISSN:
1359-7345
Laboratoires:




 Notice créée le 2016-10-18, modifiée le 2019-05-06

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