Search for "hetero-difunctionalization" in Full Text gives 2 result(s) in Beilstein Journal of Organic Chemistry.
Beilstein J. Org. Chem. 2021, 17, 2848–2893, doi:10.3762/bjoc.17.196
Beilstein J. Org. Chem. 2019, 15, 710–720, doi:10.3762/bjoc.15.66