Novel isomenthone-derived 1,3-diol ligands identified through parallel synthesis and screening catalyse an asymmetric aldol reactionElectronic supplementary information (ESI) available: HPLC data for Mukaiyama aldol products. NMR data for a pure reference sample of Mukaiyama aldol product, independently prepared selected examples of isomenthone aldol constituents and the diols included in the ligand array. See http://www.rsc.org/suppdata/cc/b2/b212769p/