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. Author manuscript; available in PMC: 2019 Oct 25.
Published in final edited form as: Science. 2018 Nov 16;362(6416):799–804. doi: 10.1126/science.aas8961

Fig. 3. Azaarene scope and guidelines for phosphonium salt formation.

Fig. 3.

Yields of isolated products after each stage are shown. n-Bu, normal butyl group; n-Pr, normal propyl group. Reaction guidelines are shown for phosphonium salt formation involving ortho and non-ortho substituted pyridines as partners. Further details of challenges and limitations are highlighted in fig. S25.