-
公开(公告)号：US20170313654A1
公开(公告)日：2017-11-02
申请号：US15518097
申请日：2015-10-15
申请人： DSM IP ASSETS B.V.
IPC分类号： C07C403/14 , C07C47/225 , C07C45/51 , C07C47/21 , C07C13/20 , C07C2601/16
CPC分类号： C07C403/14 , C07C13/20 , C07C45/512 , C07C47/21 , C07C47/225 , C07C403/08 , C07C2523/00 , C07C2601/16
摘要： The present invention relates to a new method to produce 7,8-dihydro-C15-aldehyde.
-
公开(公告)号：US20240059650A1
公开(公告)日：2024-02-22
申请号：US18256992
申请日：2021-12-13
IPC分类号： C07C407/00
CPC分类号： C07C407/00 , C07C2601/16
摘要： The present invention relates to the photooxidation of 2,4,6-trimethyl-phenol to yield 4-hydroperoxy-2,4,6-trimethylcyclohexa-2,5-dien-1-one using methylene blue as photosensitizer in a solvent mixture of water and alcohols using light of the high wavelength range of the visible spectrum. This process allows 5 obtaining 4-hydroxy-2,4,6-trimethylcyclohexa-2,5-dien-1-one and 2,3,5-trimethyl-hydroquinone in high yields and selectivity from 2,4,6-trimethylphenol.
-
公开(公告)号：US20170313655A1
公开(公告)日：2017-11-02
申请号：US15518383
申请日：2015-10-15
申请人： DSM IP ASSETS B.V.
IPC分类号： C07C403/14
CPC分类号： C07C403/14 , C07C29/42 , C07C45/512 , C07C2601/16 , C07C33/14 , C07C47/225
摘要： The present invention relates to an improved method for producing specific α,β-unsaturated aldehydes.
-
公开(公告)号：US20170297984A1
公开(公告)日：2017-10-19
申请号：US15518080
申请日：2015-10-15
申请人： DSM IP ASSETS B.V.
IPC分类号： C07C29/38 , C07C2601/16
CPC分类号： C07C29/38 , C07C29/42 , C07C403/08 , C07C2601/16 , C07C33/048
摘要： The present invention relates to a catalytic process for the ethynylation of specific poly-unsaturated aldehydes and ketones.
-
5.发明公开公开(公告)号：US20230416178A1
公开(公告)日：2023-12-28
申请号：US18251608
申请日：2021-11-08
申请人： DSM IP ASSETS B.V.
IPC分类号： C07C37/14
CPC分类号： C07C37/14
摘要： The present invention relates to the synthesis of p-alkylphenols and of 2,6-dimethyl-4-alkyl phenol from 2-alkylfurans with acetylene in the presence of a gold(I) complex as well as to 2,3,6 trimethylhydroquinone.
-
公开(公告)号：US20210276935A1
公开(公告)日：2021-09-09
申请号：US17331328
申请日：2021-05-26
申请人： DSM IP ASSETS B.V.
IPC分类号： C07C29/38 , C07C403/08 , C07C29/42
摘要： The present invention relates to a catalytic process for the ethynylation of specific polyunsaturated aldehydes and ketones.
-
公开(公告)号：US20210130277A1
公开(公告)日：2021-05-06
申请号：US17046483
申请日：2019-04-08
申请人： DSM IP ASSETS B.V.
发明人： Jan SCHUETZ
IPC分类号： C07C45/58
摘要： The present invention relates to an improved way to produce 2-methyl-4-(2,6,6-trimethyl-1-cyclohexen-1-yl)-2-butenal and derivatives thereof.
-
公开(公告)号：US20180327442A1
公开(公告)日：2018-11-15
申请号：US15774697
申请日：2016-11-28
申请人： DSM IP ASSETS B.V.
发明人： Jan SCHUETZ , Ralph WAECHTER
CPC分类号： C07J9/00 , B01D9/005 , B01D9/0063 , B01D2009/0086
摘要： The present invention relates to a method of purification of compound of formula (I) which comprises the step of crystallization of compound of formula (I) from a composition comprising the compound of formula (I) and the compound of formula (II) and a specific solvent system containing ethanol, 1-propanol, 2-propanol, 2-methyl-1-propanol, 1-butanol or 2-butanol.
-
公开(公告)号：US20170305827A1
公开(公告)日：2017-10-26
申请号：US15518355
申请日：2015-10-15
申请人： DSM IP ASSETS B.V.
IPC分类号： C07C45/51 , C07C11/12 , C07C47/225 , C07C5/23 , C07C2601/16
CPC分类号： C07C45/512 , C07C5/23 , C07C11/12 , C07C29/42 , C07C47/225 , C07C2523/46 , C07C2527/14 , C07C2601/16 , C07C33/14
摘要： The present invention relates to an improved method for producing specific α, β-unsaturated aldehydes.
-
-
-
-
-
-
-
-
搜索结果
9 条记录 (耗时 0.018 秒)
