Abstract
The development of sustainable, functional-group-tolerant catalysis is highly significant
from the perspectives of safety, user-friendliness, and cost-effectiveness. We report
herein the triple hydrogen-bonding donor activator N-triflyl phosphoric triamide (
N-TPT) for the synergistic Brønsted acid aquacatalysis of multicomponent allylation ‘on-water’.
The reaction demonstrated remarkable efficiency in converting polar diol substrate,
such as 1,3-dihydroxyacetone, into α-tertiary amine derivative incorporating homoallylic
amine functionalities using bulk water as the reaction medium. The single crystal
X-ray structure and control experiments highlighted the crucial role of multiple hydrogen
bonds in enabling this aqueous reaction.
Key words
aquacatalysis - organocatalysis - Brønsted acid - allylboration - α-tertiary amines
- ‘on-water’ chemistry