Search for "zwitterionic adducts" in Full Text gives 3 result(s) in Beilstein Journal of Organic Chemistry.
Beilstein J. Org. Chem. 2023, 19, 1947–1956, doi:10.3762/bjoc.19.145
Beilstein J. Org. Chem. 2014, 10, 1959–1966, doi:10.3762/bjoc.10.204
Beilstein J. Org. Chem. 2012, 8, 1406–1442, doi:10.3762/bjoc.8.163