@article{article28069b9f, title = {Asymmetric synthesis of 'gama'-butyrolactones by enantioselective hydrogenation of butenolides}, author = {Donate, Paulo Marcos and Frederico, Daniel and Silva, Rosangela da and Constantino, MaurĂ­cio Gomes and Del Ponte, Gino and Bonatto, Pierina Sueli}, year = {2003}, doi = {10.1016/j.tetasy.2003.08.031}, journal = {Tetrahedron} }