公开(公告)号：ES2215730T3

公开(公告)日：2004-10-16

申请号：ES00966145

申请日：2000-10-10

Applicant: BASF AG

Inventor： THERRE JIRG ,  KRAMER ANDREAS ,  WEIPER-IDELMANN ANDREAS ,  SCHULIK MICHAEL ,  BENFER REGINA ,  SCHOSSIG JURGEN

IPC: C07B61/00 ,  C07C45/62 ,  C07C45/73 ,  C07C45/74 ,  C07C47/228 ,  C07C47/232

Abstract: The present invention relates to a continuous process for the preparation of cinnamaldehyde or cinnamaldehyde derivatives by continuous reaction of benzaldehyde derivatives with alkanals in the presence of bases and optionally subsequent continuous hydrogenation in a circulation reactor in the presence of a suspension catalyst and hydrogen to give dihydrocinnamaldehyde derivatives.

公开(公告)号：AT259342T

公开(公告)日：2004-02-15

申请号：AT00966145

申请日：2000-10-10

Applicant: BASF AG

Inventor： THERRE JOERG ,  KRAMER ANDREAS ,  WEIPER-IDELMANN ANDREAS ,  SCHULIK MICHAEL ,  BENFER REGINA ,  SCHOSSIG JUERGEN ,  HAAKE MATHIAS ,  GOEBBEL HANS-GEORG

IPC: C07B61/00 ,  C07C45/62 ,  C07C45/73 ,  C07C45/74 ,  C07C47/228 ,  C07C47/232

Abstract: The present invention relates to a continuous process for the preparation of cinnamaldehyde or cinnamaldehyde derivatives by continuous reaction of benzaldehyde derivatives with alkanals in the presence of bases and optionally subsequent continuous hydrogenation in a circulation reactor in the presence of a suspension catalyst and hydrogen to give dihydrocinnamaldehyde derivatives.

公开(公告)号：DE59906105D1

公开(公告)日：2003-07-31

申请号：DE59906105

申请日：1999-04-22

Applicant: BASF AG

Inventor： BIRNBACH STEFAN ,  DOCKNER TONI ,  MOHR JUERGEN ,  BENFER REGINA ,  BIEG WALTER ,  PETERS JARREN ,  RUGE BERND ,  WEINLE WERNER ,  ZEHNER PETER

IPC: C07D317/36 ,  C07D317/38

Abstract: A process for the continuous production of 1,3-dioxolan-2-ones such as ethylene carbonate or propylene carbonate by reacting a corresponding oxirane with carbon dioxide in the liquid phase in the presence of a catalyst comprises conducting the reaction in a two-part reactor in whose first part the reaction is taken with backmixing to a conversion of not less than 80% of the oxirane II and in whose second part the reaction is completed under nonbackmixing conditions, and passing the carbon dioxide in countercurrent to the oxirane II in the entire reactor.