Skip to main content
. Author manuscript; available in PMC: 2019 Aug 20.
Published in final edited form as: J Am Chem Soc. 2019 Jul 30;141(32):12507–12512. doi: 10.1021/jacs.9b06277

Figure 3.

Figure 3.

(A) 31P NMR studies. (B) Proposed mechanism of auto-tandem catalytic dehydrative annulation of amines and carboxylic acids. Methyl groups excluded from 4 for clarity. DEBM = diethyl bromomalonate.