Search for "retro-Mannich" in Full Text gives 5 result(s) in Beilstein Journal of Organic Chemistry.
Beilstein J. Org. Chem. 2018, 14, 2602–2606, doi:10.3762/bjoc.14.238
Beilstein J. Org. Chem. 2013, 9, 983–990, doi:10.3762/bjoc.9.113
Beilstein J. Org. Chem. 2010, 6, 876–879, doi:10.3762/bjoc.6.103
Beilstein J. Org. Chem. 2008, 4, No. 8, doi:10.1186/1860-5397-4-8
Beilstein J. Org. Chem. 2007, 3, No. 32, doi:10.1186/1860-5397-3-32