Aziridines are a group of organic compounds sharing the aziridine functional group which is a three membered heterocycle with one amine group and two methylene groups Heterocyclic chemistry T.L. Gilchrist ISBN 0-582-01421-2 Epoxides and aziridines - A mini review Albert Padwaa and S. Shaun Murphreeb Arkivoc (JC-1522R) pp 6-33 http://www.arkat-usa.org/ark/journal/2006/I03_Coxon/1522/JC-1522R.asp Online article.