公开(公告)号：US20220177397A1

公开(公告)日：2022-06-09

申请号：US17554438

申请日：2021-12-17

Applicant: SI GROUP, INC.

Inventor： Cornelius HAASE ,  Ricky BIITTIG ,  Allyson STAATS ,  Philip David ATWOOD ,  Jim WEBB ,  Kelly CHICHAK

IPC: C07C37/20 ,  B01J31/02 ,  C07C39/15 ,  C08G8/12

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.

公开(公告)号：US20210047253A1

公开(公告)日：2021-02-18

申请号：US17087422

申请日：2020-11-02

Applicant: SI GROUP, INC.

Inventor： Cornelius HAASE ,  Ricky BIITTIG ,  Allyson STAATS ,  Philip David ATWOOD ,  Jim WEBB ,  Kelly CHICHAK

IPC: C07C37/20 ,  C08G8/12 ,  B01J31/02 ,  C07C39/15

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.

公开(公告)号：US20210017109A1

公开(公告)日：2021-01-21

申请号：US16992747

申请日：2020-08-13

Applicant: SI GROUP, INC.

Inventor： Cornelius HAASE ,  Ricky BIITTIG ,  Allyson STAATS ,  Philip David ATWOOD ,  Jim WEBB ,  Kelly CHICHAK

IPC: C07C37/20 ,  B01J31/02 ,  C07C39/15 ,  C08G8/12

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.

公开(公告)号：US20190248722A1

公开(公告)日：2019-08-15

申请号：US16271554

申请日：2019-02-08

Applicant: SI GROUP, INC.

Inventor： Cornelius HAASE ,  Jeff HISCOCK ,  Philip David ATWOOD

IPC: C07C37/52 ,  C07C37/20

CPC classification number: C07C37/52 ,  B01D9/0054 ,  B01J23/04 ,  C07C37/20 ,  C07C39/17 ,  C07C2603/92

Abstract: This invention relates to a one-pot synthesis of a high-purity calix[4]arene 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 calix[8]arene compound, and cleaving the calix[8]arene compound into a high-purity calix[4]arene compound, directly, without carrying out a purification step before the cleaving step. The invention also relates to an improved conversion of a calix[8]arene compound to a calix[4]arene compound, by cleaving a calix[8]arene compound in a glycol ether solvent having a boiling point of at least about 200° C., to result in a high-purity calix[4]arene compound, without using an antisolvent.

公开(公告)号：US20190248721A1

公开(公告)日：2019-08-15

申请号：US16271499

申请日：2019-02-08

Applicant: SI GROUP, INC.

Inventor： Cornelius HAASE ,  Ricky BIITTIG ,  Allyson STAATS ,  Philip David ATWOOD ,  Jim WEBB ,  Kelly CHICHAK

IPC: C07C37/20 ,  C07C39/15 ,  B01J31/02

CPC classification number: C07C37/20 ,  B01J31/0239 ,  B01J31/0244 ,  C07C39/15 ,  C08G8/12 ,  C07C39/17

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.