公开(公告)号：US3681466A

公开(公告)日：1972-08-01

申请号：US3681466D

申请日：1969-09-23

Applicant: BASF AG

Inventor： POMMER HORST ,  SEID BERNHARD ,  NUERRENBACH AXEL ,  KLOTMANN GEORG ,  GRASSNER HANS

IPC: C07C29/00 ,  C07C33/00 ,  C07C403/00

CPC classification number: C07C403/08 ,  C07C2601/16

Abstract: Continuous production of axerophthol by reaction of axerophthyl acetate with a lower alcohol using guanidine as transesterification catalyst in two stages, alkyl acetate and some of the excess alcohol being distilled off in the first stage and the remainder of the alcohol being removed in the second stage by distillation with a hydrocarbon as entrainer.

Abstract translation: 通过使用胍作为酯交换催化剂在两个阶段中通过乙酸半酯与低级醇反应连续生产萜烯酚，在第一阶段中将乙酸烷基酯和一些过量的醇在第二阶段被蒸馏除去，其余的醇在第二阶段被除去 用烃作为夹带剂进行蒸馏。

公开(公告)号：US3627795A

公开(公告)日：1971-12-14

申请号：US3627795D

申请日：1970-03-16

Applicant: BASF AG

Inventor： POMMER HORST ,  NUERRENBACH AXEL ,  KLOTMANN GEORG ,  GRASSNER HANS

IPC: C07C69/74 ,  C07C403/00 ,  C07C175/00

CPC classification number: C07C403/12 ,  C07C2601/16

Abstract: Vitamin A palmitate is prepared from vitamin A alcohol and palmitoyl chloride in the presence of a tertiary amine in a continuous process in which vitamin A palmitate is obtained in high purity and almost quantitative yields.

公开(公告)号：CA1101431A

公开(公告)日：1981-05-19

申请号：CA304629

申请日：1978-06-01

Applicant: BASF AG

Inventor： SCHULZ BERNHARD ,  GRAFEN PAUL ,  SCHOLZ HANS-ULRICH ,  GRASSNER HANS ,  REIF WERNER

IPC: C07F9/54

Abstract: Aqueous solutions of polyenyltriarylphosphonium salts are prepared from solutions of the corresponding polyenyltriarylphosphonium salts in organic solvents by driving off the solvent with stem, part of the steam being allowed to condense. Some of the said triarylphosphonium salts may be used directly as pesticides whilst others are used as intermediates for organic syntheses, especially in the cartinoid field.

公开(公告)号：CA1105875A

公开(公告)日：1981-07-28

申请号：CA283093

申请日：1977-07-19

Applicant: BASF AG

Inventor： SCHULZ BERNHARD ,  GRASSNER HANS ,  JAEGER PETER ,  NOHE HEINZ

IPC: C07F9/54 ,  C09B61/00 ,  C25B3/29 ,  C25B3/02

Abstract: : Symmetrical carotenoids are manufactured from the molecular halves thereof by a process wherein phosphonium salts of the molecular halves of these symmetrical carotenoids containing as substituents besides said molecular halves three aromatic, aliphatic or cycloaliphatic radicals are oxidized by electrochemical anodic oxidation in a solvent and in the presence of a base at temperatures at from -20 to +60.degree.C with a current density of from 1 to 500A/dm2.

公开(公告)号：CA905980A

公开(公告)日：1972-07-25

申请号：CA905980D

Applicant: BASF AG

Inventor： GRASSNER HANS ,  NUERRENBACH AXEL ,  POMMER HORST ,  KLOTMANN GEORG

公开(公告)号：FR1351243A

公开(公告)日：1964-01-31

申请号：FR928640

申请日：1963-03-20

Applicant: BASF AG

Inventor： REICHENEDER FRANZ ,  GRASSNER HANS

IPC: C07C67/327 ,  C07C67/38