Search for "N-methylation" in Full Text gives 30 result(s) in Beilstein Journal of Organic Chemistry.
Beilstein J. Org. Chem. 2013, 9, 265–269, doi:10.3762/bjoc.9.32
Beilstein J. Org. Chem. 2013, 9, 97–105, doi:10.3762/bjoc.9.13
Beilstein J. Org. Chem. 2012, 8, 501–513, doi:10.3762/bjoc.8.57
Beilstein J. Org. Chem. 2011, 7, 442–495, doi:10.3762/bjoc.7.57
Beilstein J. Org. Chem. 2008, 4, No. 44, doi:10.3762/bjoc.4.44