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Hyperpolarized fumarate via parahydrogen.

Chem Commun (Camb)

November 2018

Max Planck Institute for Polymer Research, Mainz, Germany and Technical University of Kaiserslautern, Kaiserslautern, Germany.

We produce hyperpolarized [1-C]fumarate in the proton nuclear spin singlet state by pairwise trans-addition of parahydrogen to a molecular precursor using a ruthenium-based catalyst in water. The proton singlet state is transformed into observable carbon magnetization by radiofrequency pulses to enhance the C signal by a factor of 1000 using 50% para-enriched hydrogen gas.

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