Phosphaalkene-oxazoline copolymers with styrene as chiral ligands for rhodium(i)

Abstract

The radical-initiated copolymerization of phosphaalkene-oxazoline, MesPC(Ph)CMe₂Ox [1, Ox = CNOCH(iPr)CH₂] with different loadings of styrene affords poly(methylenephosphine-co-styrene)s [2a (1 : S = 1 : 2): M_w = 7400 g mol⁻¹, PDI = 1.1; 2b (1 : S = 1 : 5): M_w = 18 000 g mol⁻¹, PDI = 1.2; 2c (1 : S = 1 : 10): M_w = 16 000 g mol⁻¹, PDI = 1.3].