Publications [#350773] of Warren S. Warren

Journal Articles

1. Colell, JFP; Logan, AWJ; Zhou, Z; Lindale, JR; Laasner, R; Shchepin, RV; Chekmenev, EY; Blum, V; Warren, WS; Malcolmson, SJ; Theis, T, Rational ligand choice extends the SABRE substrate scope., Chemical communications (Cambridge, England), vol. 56 no. 65 (August, 2020), pp. 9336-9339 [doi]
   (last updated on 2026/01/14)

   Abstract:
   Here we report on chelating ligands for Signal Amplification By Reversible Exchange (SABRE) catalysts that permit hyperpolarisation on otherwise sterically hindered substrates. We demonstrate ¹H enhancements of ∼100-fold over 8.5 T thermal for 2-substituted pyridines, and smaller, yet significant enhancements for provitamin B₆ and caffeine. We also show ¹⁵N-enhancements of ∼1000-fold and ¹⁹F-enhancements of 30-fold.