公开(公告)号：US20170334820A1

公开(公告)日：2017-11-23

申请号：US15522583

申请日：2015-11-06

Applicant: BASF SE

Inventor： Ralf PELZER ,  Carolin REGENBRECHT

IPC: C07C41/36 ,  C07C43/23 ,  C11B9/00 ,  C11B9/02

CPC classification number: C07C41/36 ,  B01D15/00 ,  C07C43/23 ,  C11B9/0061 ,  C11B9/025

Abstract: The present invention relates to the use of 3,3′-dimethoxy-4,4′-dihydroxystilbene as an odorous substance, in particular for developing a vanilla odor under the action of light. Furthermore, the invention relates to a composition which contain 3,3′-dimethoxy-4,4′-dihydroxystilbene and additionally a carrier, fragrance compositions and/or an odorant material which contain said compound and a process for imparting or modifying an odor of compositions by adding said compound to these compositions. The invention additionally relates to a process for obtaining 3,3′-dimethoxy-4,4′-dihydroxystilbene from lignin-containing compositions.

公开(公告)号：US20170233874A1

公开(公告)日：2017-08-17

申请号：US15503459

申请日：2015-08-12

Applicant: BASF SE

Inventor： Nicola Christiane AUST ,  Ulrich GRIESBACH ,  Ralf PELZER ,  Thomas HAAG ,  Ulrich BERENS ,  Jörg BOTZEM

IPC: C25B3/10

CPC classification number: C25B3/10

Abstract: Alcohols are prepared by electrochemical reductive coupling of an aromatic vinyl compound and a carbonyl compound in a process which comprises electrolyzing an electrolyte solution in an electrochemical cell, the electrolyte solution comprising the aromatic vinyl compound, the carbonyl compound and a non-aqueous protic solvent, such as methanol, wherein the electrolyte solution is in contact with a carbon-based cathode Styrene is reacted with acetone to prepare 2-methyl-4-phenyl-2-butanol.