公开(公告)号：DE2729974A1

公开(公告)日：1979-01-18

申请号：DE2729974

申请日：1977-07-02

Applicant: BASF AG

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

IPC: A01N57/00 ,  C07F9/54 ,  A01N9/36

Abstract: 10-70 wt.% organic solvent solutions of polyenyl-triaryl-phosphonium salts of formula (I) (R is a 5-20C aliphatic, cycloaliphatic-aliphatic or araliphatic polyenyl residue; X is the anion equivalent of a strong acid; Ar is aryl) are converted into solvent-free aq. solutions or fine dispersions. the solvent and other steam-volatile cpds. originating from the synthesis of (I) are driven off with steam at 30-120degrees C. Part of the steam is allowed to condense so as to produce the aq. soln. or dispersion. Some cpds. (I) are useful as pesticides (e.g. against water snails), while others are intermediates, esp. for carotenoids. Aq. solns. or dispersions of (I) often preferred for organic syntheses) are easily obtd. from the organic solutions formed in the synthesis of (I).

公开(公告)号：DE2727384A1

公开(公告)日：1979-01-04

申请号：DE2727384

申请日：1977-06-18

Applicant: BASF AG

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

IPC: C07F9/54

Abstract: Prodn. of aq. solns. of polyenyltriarylphosphonium salts of formula R-P(Ar)3 +X- (I) (where R is a 5-20C aliphatic, cycloaliphatic-aliphatic or aromatic-aliphatic polyene radical; Ar is aryl; X- is the anion equiv. of a strong acid) is carried out by steam stripping a 10-70 wt.% soln. of (I) in an organic solvent, maintained at 30-120 degrees C, so that the solvent and any other volatile cpds. derived from the synthesis of (I) are removed and part of the steam condenses to form an aq. soln. Some cpds. (I), e.g. (I; R is beta-ionylidenethyl) are useful as pesticides (e.g. for control of water snails); others are useful as intermediates for carotenoid synthesis (cf. DT 2505869). The process avoids thermal decompsn. (cf. direct distn.) and foaming (cf. addn. of water followed by distn.).

公开(公告)号：DE2960250D1

公开(公告)日：1981-04-30

申请号：DE2960250

申请日：1979-07-18

Applicant: BASF AG

Inventor： SCHULZ BERNHARD DR ,  GRASSNER HANS DR ,  GRAFEN PAUL DR

IPC: C07C403/08 ,  C07C67/00 ,  C07C401/00 ,  C07C403/00 ,  C07C403/12 ,  C07C175/00

公开(公告)号：DE2860043D1

公开(公告)日：1980-11-13

申请号：DE2860043

申请日：1978-06-13

Applicant: BASF AG

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

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 steam, part of the steam being allowed to condense. Some of the said triarylphosphonium salts may be used directly as pesticides while others are used as intermediates for organic syntheses, especially in the carotinoid field.

公开(公告)号：DE1793479A1

公开(公告)日：1972-03-02

申请号：DE1793479

申请日：1968-09-24

Applicant: BASF AG

Inventor： POMMER HORST PROF DR ,  SEID BERNHARD DIPL-ING ,  NUERRENBACH AXEL DR ,  KLOTMANN GEORG DR ,  GRASSNER HANS DR

IPC: C07C29/00 ,  C07C33/00 ,  C07C403/00 ,  C07C175/00

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.

公开(公告)号：CH527811A

公开(公告)日：1972-09-15

申请号：CH399270

申请日：1970-03-17

Applicant: BASF AG

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

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

公开(公告)号：CH519493A

公开(公告)日：1972-02-29

申请号：CH1419269

申请日：1969-09-19

Applicant: BASF AG

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

IPC: C07C29/00 ,  C07C33/00 ,  C07C403/00 ,  C07C175/00