Search for "intramolecular aza-Wittig reaction" in Full Text gives 5 result(s) in Beilstein Journal of Organic Chemistry.
Beilstein J. Org. Chem. 2023, 19, 892–900, doi:10.3762/bjoc.19.67
Beilstein J. Org. Chem. 2023, 19, 800–807, doi:10.3762/bjoc.19.60
Beilstein J. Org. Chem. 2022, 18, 286–292, doi:10.3762/bjoc.18.32
Beilstein J. Org. Chem. 2015, 11, 416–424, doi:10.3762/bjoc.11.47
Beilstein J. Org. Chem. 2013, 9, 503–509, doi:10.3762/bjoc.9.54