Search for "metal-catalyst-free" in Full Text gives 3 result(s) in Beilstein Journal of Organic Chemistry.
Beilstein J. Org. Chem. 2024, 20, 973–1000, doi:10.3762/bjoc.20.87
Beilstein J. Org. Chem. 2023, 19, 1251–1258, doi:10.3762/bjoc.19.93
Beilstein J. Org. Chem. 2017, 13, 552–557, doi:10.3762/bjoc.13.53