^Ogoshi, T.; Kanai, S.; Fujinami, S.; Yamagisi, T.; Nakamoto, Y. (2008). "Para-bridged symmetrical pillar 5 arenes: Their Lewis acid catalyzed synthesis and host–guest property". J. Am. Chem. Soc. 130 (15): 5022–5023. doi:10.1021/ja711260m. PMID18357989.
^Cao, D.; Kou, Y.; Liang, J.; Chen, Z.; Wang, L.; Meier, H.; A Facile and Efficient Preparation of Pillararenes and a Pillarquinone. Angew. Chem. Int. Ed. 2009, 48, 9721-9723.