Reference(s) for synthesis of (E,E)-2,8-Dimethyl-1,7-dioxaspiro[5.5]undecane
Zhang, H., Fletcher, M.T., Dettner, K., Francke, W., and Kitching, W. 1999. Synthesis and absolute stereochemistry of spiroacetals in rove beetles ( Coleoptera: Staphylinidae). Tetrahedron Lett. 40:7851-7854.