@inproceedings{inproceedingsec8be2a7,
title   = {Diels-alder reactions of cycloenones catalysed by niobium pentachloride},
author = {Silva Filho, Luiz Carlos da and Lacerda Júnior, Valdemar and Silva, Gil Valdo José da and Constantino, Maurício Gomes},
year = {2003},
publisher = {UNICAMP},
booktitle   = {Brazilian Meeting on Organic Synthesis}
}