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Beilstein J. Org. Chem. 2020, 16, 1974–1982, doi:10.3762/bjoc.16.164
Graphical Abstract
Figure 1: Biologically active compounds featuring the chroman-4-one framework.
Scheme 1: Methods to produce phosphonate-substituted chroman-4-ones.
Figure 2: X-ray structure of compound 3aa (CCDC 2002878).
Scheme 2: Scope of 2-(allyloxy)arylaldehydes. Reaction conditions: 1 (0.3 mmol, 1 equiv), 2a (1.5 equiv) [2f ...
Scheme 3: Scope of diphenylphosphine oxides. Reaction conditions: 1a (0.3 mmol, 1 equiv), 2 (1.5 equiv), DMSO...
Scheme 4: Gram-scale reaction.
Scheme 5: Control experiments and proposed mechanism.