公开(公告)号：AT247364B

公开(公告)日：1966-06-10

申请号：AT975364

申请日：1964-11-18

Applicant: BASF AG

Inventor： FREYSCHLAG HERWIG DR ,  REIF WERNER DR ,  NUERRENBACH AXEL DR ,  SARNECKI WILHELM DR

IPC: A01N57/22 ,  C07F9/535

Abstract: The invention comprises ylenals, (i.e. compounds which in the same molecule contain a phosphorylene group and an aldehyde group in conjunction) of the formula where Ar is an aryl radical which may be substituted by alkyl or alkoxy groups; R1, R2 and R3 are H or alkyl groups and n is an integer from 1 to 6. They may be obtained by reacting a proton acceptor in liquid phase with a quaternary phosphonium salt of the formula where X(-) is a monovalent anion. Suitable proton acceptors are bases having a pK value below or about 9 such as alcoholates, ammonia, amines, e.g. alkylamines or heterocyclic amines, or aqueous alkali. Suitable solvents are water, dimethyl-formamide or sulphoxide, acetonitrile, alcohol, hydrocarbons, halogenated hydrocarbons or mixtures thereof. Specified products are triphenylphosphine-2-formylpropen-1-yl-1-methylene, triphenylphosphine-3-formylpropen-(2)-yl-2-methylene, triphenylphosphine-2 - methyl - 4 - formylbutadien - (1,3) - yl - 1 - methylene, triphenylphosphine-1-methyl-4-formylbutadiene - (1,3) - yl - 1 - methylene, and triphenylphosphine - 2,6 - dimethyl - 6 - formylhexatrien - (1,3,5) - yl - 1 - methylene. Examples are given for the preparation of triphenylphosphine - 2 - formylpropen - 1 - yl-methylene. The products are intermediates for the synthesis of dyes, pharmaceuticals, plant protection agents, food dyes and carolenoids. The phosphonium salts of Formula I may be obtained by reacting a suitable halogen compound with a triarylphosphine in an organic solvent.

公开(公告)号：CH375708A

公开(公告)日：1964-03-15

申请号：CH6021358

申请日：1958-06-04

Applicant: BASF AG

Inventor： POMMER HORST DR ,  SARNECKI WILHELM DR

公开(公告)号：CH355451A

公开(公告)日：1961-07-15

申请号：CH355451D

申请日：1957-06-18

Applicant: BASF AG

Inventor： SARNECKI WILHELM DR ,  POMMER HORST DR

公开(公告)号：DE3374480D1

公开(公告)日：1987-12-17

申请号：DE3374480

申请日：1983-07-23

Applicant: BASF AG

Inventor： STECK WERNER DR ,  RUDOLF PETER DR ,  SARNECKI WILHELM DR ,  LOESER WERNER DR ,  KOVACS JENOE DR ,  JAKUSCH HELMUT DR

IPC: G11B5/706 ,  B22F1/00 ,  B22F9/22 ,  C01G49/02 ,  C09D5/23 ,  C09D7/12 ,  H01F1/06

Abstract: Acicular ferromagnetic metal particles consisting essentially of iron are prepared by a process wherein acicular iron(III) oxide hydroxide provided with a shape-stabilizing surface coating, or iron(III) oxide obtained therefrom by dehydration, is reduced by means of a decomposable organic compound and hydrogen.

公开(公告)号：DE3345532A1

公开(公告)日：1985-06-27

申请号：DE3345532

申请日：1983-12-16

Applicant: BASF AG

Inventor： STECK WERNER DR ,  SARNECKI WILHELM DR ,  JAKUSCH HELMUT DR ,  MAROSI LASZLO DR

IPC: C01G49/00 ,  C01G49/02 ,  C01G51/00 ,  C01G51/04 ,  G11B5/706 ,  H01F1/10 ,  H01F1/11 ,  B05D5/12 ,  G11B5/62 ,  H01F10/18

公开(公告)号：DE3067620D1

公开(公告)日：1984-05-30

申请号：DE3067620

申请日：1980-08-21

Applicant: BASF AG

Inventor： SARNECKI WILHELM DR ,  MAROSI LASZLO DR ,  AUTZEN HORST DR ,  OHLINGER MANFRED DR ,  STECK WERNER DR

IPC: C01G49/02 ,  C01G49/06 ,  G11B5/706 ,  H01F1/11

Abstract: A process for the manufacture of acicular ferrimagnetic iron oxide by heating iron(III) oxide or iron(III) oxide hydroxide at 220 DEG -460 DEG C. under a water vapor partial pressure of not less than 30 mbar, reducing the resulting product to magnetite by means of hydrogen and/or CO and/or an organic compound which can decompose in the presence of iron oxide, and then oxidizing the magnetite with an oxygen-containing gas to give acicular ferrimagnetic iron oxide of the formula FeOX, where X is from 1.33 to 1.50.

公开(公告)号：DE3228669A1

公开(公告)日：1984-02-02

申请号：DE3228669

申请日：1982-07-31

Applicant: BASF AG

Inventor： STECK WERNER DR ,  RUDOLF PETER DR ,  SARNECKI WILHELM DR ,  LOESER WERNER DR ,  KOVACS JENOE DR ,  JAKUSCH HELMUT DR

IPC: G11B5/706 ,  B22F1/00 ,  B22F9/22 ,  C01G49/02 ,  C09D5/23 ,  C09D7/12 ,  H01F1/06 ,  B22F9/18 ,  C01G49/00 ,  G11B5/62

Abstract: Acicular ferromagnetic metal particles consisting essentially of iron are prepared by a process wherein acicular iron(III) oxide hydroxide provided with a shape-stabilizing surface coating, or iron(III) oxide obtained therefrom by dehydration, is reduced by means of a decomposable organic compound and hydrogen.

公开(公告)号：CH437247A

公开(公告)日：1967-06-15

申请号：CH1480664

申请日：1964-11-17

Applicant: BASF AG

Inventor： FREYSCHLAG HERWIG DR ,  REIF WERNER DR ,  NUERRENBACH AXEL DR ,  SARNECKI WILHELM DR

IPC: A01N57/22 ,  C07F9/535 ,  C07F9/28

公开(公告)号：CH374989A

公开(公告)日：1964-02-15

申请号：CH6306858

申请日：1958-08-19

Applicant: BASF AG

Inventor： SARNECKI WILHELM DR ,  POMMER HORST DR

IPC: C07F9/54

公开(公告)号：DE1068710B

公开(公告)日：1959-11-12

申请号：DEB0049852

申请日：1958-08-06

Applicant: BASF AG

Inventor： POMMER HORST DR ,  SARNECKI WILHELM DR