John's research set the record straight on the solution structure of allenyl-propargyllithium reagents. He showed using mainly 13C NMR spectroscopy that most of these were localized allenyllithium reagents, but that a few were propargyllithiums.|
There were even several that had intermediate structures. Although John found circumstantial evidence that these were mixtures of localized allenyl and propargyllithiums, it was Jennifer Thompson who later provided unambiguous proof of their structure using a Saunder's NMR isotope perturation experiment.
John did postdoctoral work in Scott Denmark's laboratory before moving to his first position at Union Carbide.
Manager, Biomass Market Sector, Pacific Northwest National Laboratory|