The traditional thermal Mannich reaction is unsuitable for preparing polymerizable N-methylene amino substituted acrylamides and methacrylamides. Herein we provide a facile multi-gram high yield synthesis of these monomeric precursors to stimuli-responsive polymers by the addition of acrylamides and methacrylamides onto in situ generated or freshly isolated methylene Schiff base (iminium) salts. The X-ray crystal structure of the hydrated iminium salt, 1-(hydroxymethyl)azocan-1-ium chloride and monomer·HCl salt (N-[(azocan-1-yl)methyl]prop-2-enamide hydrochloride) is described.
CITATION STYLE
Alzahrani, A., Mirallai, S. I., Chalmers, B. A., McArdle, P., & Aldabbagh, F. (2018). Synthesis of: N -[(dialkylamino)methyl]acrylamides and N -[(dialkylamino)methyl]methacrylamides from Schiff base salts: Useful building blocks for smart polymers. Organic and Biomolecular Chemistry, 16(22), 4108–4116. https://doi.org/10.1039/c8ob00811f
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