Abstract
A practical, indirect procedure composed of a three-component condensation using aromatic aldehydes, p-tosylamide, and sodium p-toluenesulfinate in the presence of sulfamic acid in tap water-alcohol solvents to afford amidosulfones, and the subsequent water two-phase basic elimination of the amidosulfones to N-tosyl arylimines, was developed. The process has little environmental impact, easy workup, mild reaction conditions, and good yields and is amenable to large-scale preparations.
Original language | English |
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Pages (from-to) | 713-724 |
Number of pages | 12 |
Journal | Synthetic Communications |
Volume | 37 |
Issue number | 5 |
DOIs | |
State | Published - Jan 2007 |
Keywords
- Aqueous solvent
- Condensation
- Sulfamic acid
- Sulfonamide
- Sulfonyl imines