Carbon dioxide (CO2) is not only an easily available, renewable carbon resource, but also an environmentally
friendly chemical reagent. Fixation of CO2 with epoxides into cyclic carbonates (CC) is one of
the most promising methodologies in this area. Recently, increasing attentions have paid to the utilization of
environmentally benign hydrogen bond donors as the co-catalysts, and it is clear that hydrogen bond donors
remarkably promote the reaction. In this review, we highlight the progress that have been made, and summarize
the hydrogen bond donors (HBD) as co-catalysts for fixation of CO2 with epoxides into CC, and the results
have been tabulated to summarize reaction conditions and catalytic activities for various typical epoxides conversions.
Furthermore, the HBD-promoted reaction mechanism will also be summarized and discussed in details.