Beilstein J. Org. Chem.2021,17, 1689–1697, doi:10.3762/bjoc.17.117
masses of about 1200 g/mol at room temperature are accessible. Polymerizations carried out at 80 °C resulted in macromolecules containing a considerable share of Rauhut–Currier-type repeat units and consequently lower molar masses were obtained.
Keywords: Michael acceptor affinity; Michaeladdition
chemistry; organocatalysis; phosphine; solvent-free synthesis; Introduction
Phosphines are potent nucleophiles that are used as catalysts in many reactions, like Rauhut–Currier, Morita–Baylis–Hillman or Michael reactions [1][2][3]. The first step of these reactions is a conjugate addition of the phosphine
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Graphical Abstract
Scheme 1:
Mechanism for the phosphine-initiated oxa-Michael addition.