Search for "thiochromenes" in Full Text gives 4 result(s) in Beilstein Journal of Organic Chemistry.
Beilstein J. Org. Chem. 2018, 14, 2897–2906, doi:10.3762/bjoc.14.268
Beilstein J. Org. Chem. 2015, 11, 530–562, doi:10.3762/bjoc.11.60
Beilstein J. Org. Chem. 2014, 10, 996–1005, doi:10.3762/bjoc.10.99
Beilstein J. Org. Chem. 2012, 8, 1668–1694, doi:10.3762/bjoc.8.191