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US 11,629,113 B2Granted
Pyrogallol[2]resorcin[2]arene
AssigneeUniversity of Cincinnati
InventorHarshita Kumari
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Abstract
A one pot synthesis of a mixed macrocycle of resorcinol and pyrogallol is disclosed using an acidic catalyst by conventional as well as by microwave assisted methods. Compared with traditional synthesis, the microwave mediated tactic provides a simple, greener route and affords higher compound yields in a shorter period. Moreover, the catalyst can be efficiently reused without any loss in activity.
Claims16
A composition comprising pyrogallol[2]resorcin[2]arene.
A method of making a mixed macrocycle of resorcinol and pyrogallol comprising:
- a. mixing pyrogallol and resorcinol with an aldehyde in a solvent selected from the group consisting of acetonitrile, ethanol, acetone, water and combinations thereof;
- b. irradiating the mixture using microwaves to produce a product;
- and
- c. crystallizing the product;
- wherein the product comprises the mixed macrocycle.
2 more elements
A method of making a mixed macrocycle of resorcinol and pyrogallol comprising:
- a. mixing pyrogallol and resorcinol with an aldehyde in a solvent selected from the group consisting of acetonitrile, ethanol, acetone, water and combinations thereof;
- b. heating the mixture in the presence of at least one catalyst selected from the group consisting of concentrated HCl, a macroreticular polystyrene-based sulfonic acid ion exchange resin and sulfonated graphitic carbon nitride, to produce a product;
- and
- c. crystallizing the product;
- wherein the product comprises the mixed macrocycle.
2 more elements
Dependencies are inferred from the claim text.