Retraction: Dual catalysis with magnetic chitosan: direct synthesis of cyclic carbonates from olefins with carbon dioxide using isobutyraldehyde as the sacrificial reductant

Retraction of 'Dual catalysis with magnetic chitosan: direct synthesis of cyclic carbonates from olefins with carbon dioxide using isobutyraldehyde as the sacrificial reductant' by Subodh Kumar et al., Dalton Trans., 2015, 44, 11860-11866, https://doi.org/10.1039/C5DT01012H.