1. Cycloalkanes from biomass-derived furfurals and cyclic ketones† Qiying Liu, *a Caihong Zhang,ab NingShi,ab Xinghua Zhang, *a Chenguang Wanga and Longlong Maa Developing renewable long-chain Cycloalkanes from lignocellulosic biomass is of significance because it offers huge resource storage, wide applications in aviation/diesel fuels and