Search for "alkyne annulation" in Full Text gives 4 result(s) in Beilstein Journal of Organic Chemistry.
Beilstein J. Org. Chem. 2021, 17, 1591–1599, doi:10.3762/bjoc.17.113
Beilstein J. Org. Chem. 2020, 16, 791–797, doi:10.3762/bjoc.16.72
Beilstein J. Org. Chem. 2020, 16, 524–529, doi:10.3762/bjoc.16.48
Beilstein J. Org. Chem. 2014, 10, 975–980, doi:10.3762/bjoc.10.96