Processes for preparing calixarenes
AssigneeSi Group, Inc.
InventorsCornelius HAASE, Ricky BIITTIG, Allyson STAATS, Philip David ATWOOD, Jim WEBB, Kelly CHICHAK
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Abstract
This invention relates to a process for preparing a calixarene compound by reacting a phenolic compound and an aldehyde in the presence of at least one nitrogen-containing base as a catalyst to form the calixarene compound. The invention also relates to processes for high-yield, high solid-content production of a calixarene compound, with high selectivity toward a high-purity calix[8]arene compound, without carrying out a recrystallization step.
Claims20
A process for preparing a calixarene compound, comprising:
- reacting a phenolic compound and an aldehyde in the presence of at least one nitrogen-containing base as a catalyst to form the calixarene compound, wherein the nitrogen-containing base is a tetraalkyl ammonium hydroxide, wherein each alkyl moiety in the tetraalkyl ammonium hydroxide is independently C1 to C2 alkyl.
A one-step process for preparing a calixarene compound, comprising:
- reacting a phenolic compound and an aldehyde in the presence of at least one nitrogen-containing base as a catalyst to form the calixarene compound in a one-step process, wherein the nitrogen-containing base is a tetraalkyl ammonium hydroxide, wherein each alkyl moiety in the tetraalkyl ammonium hydroxide is independently C1 to C6 alkyl.
Dependencies are inferred from the claim text.