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Beilstein J. Org. Chem. 2022, 18, 1217–1224, doi:10.3762/bjoc.18.127
Graphical Abstract
Figure 1: Structures of 2-phosphaindolizine (1) and indolizine (2).
Figure 2: Structures of 1-aza-2-phosphaindolizines 3, 3-aza-2-phosphaindolizines 4, and 1,3-diaza-2-phosphain...
Figure 3: Transfer of the nitrogen lone-pair in 2-phosphaindolizines.
Figure 4: Energy gap (ΔE) between HOMO of 1,3-butadiene and LUMO of 2-phosphaindolizine.
Figure 5: Kohn–Shan HOMO of 1,3-butadiene and LUMOs of 2-phosphaindolizines computed at the B3LYP/6-31+G(d) l...