公开(公告)号：DE1619369A1

公开(公告)日：1971-02-25

申请号：DE1619369

申请日：1967-06-13

Applicant: BASF AG

Inventor： BAUMANN HANS DR ,  MUELLER HANS-RICHARD DR

IPC: C07D311/60

Abstract: 1,219,804. Dyeing polyacrylonitrile. BADISCHE ANILIN - SODA - FABRIK A.G. 12 June, 1968 [13 June, 1967], No. 27839/68. Heading C3P. [Also in Divisions C4 and D1] In Example 4 the dye of Formula II is dissolved in dimethylformamide and added to a solution of acrylonitrile polymer which is spun to give a blue shade.

公开(公告)号：DE2417787A1

公开(公告)日：1975-10-16

申请号：DE2417787

申请日：1974-04-11

Applicant: BASF AG

Inventor： GOTSMANN GUENTHER DR ,  GLASER KLAUS ,  ARMBRUST HERBERT ,  MUELLER HANS-RICHARD DR

IPC: C25D3/16 ,  C25D3/14

公开(公告)号：CH512465A

公开(公告)日：1971-09-15

申请号：CH1019269

申请日：1969-07-03

Applicant: BASF AG

Inventor： SEEFELDER MATTHIAS DR ,  MUELLER HANS-RICHARD DR

IPC: C07D209/46 ,  C07D27/50

公开(公告)号：CH607997A5

公开(公告)日：1978-12-15

申请号：CH85175

申请日：1975-01-24

Applicant: BASF AG

Inventor： HANNEBAUM HEINZ ,  NOHE HEINZ DR ,  MUELLER HANS-RICHARD DR

IPC: C25B3/25 ,  C07D209/04 ,  C07D209/82

Abstract: Indoles or carbazoles hydrogenated in the nucleus are prepared by electrochemical reduction. Indoles or tetrahydrocarbazoles are electrolysed in aqueous sulphuric acid. The catholyte containing the reaction product is circulated and passed from the electrolytic cell into a column and from the bottom of the column back into the cell. A packed column and flow densities of 1-20 A/dm are preferably used. The catholyte expediently contains 50-70 % by weight strength sulphuric acid. The process products can be used as useful intermediates for dyestuff production.

公开(公告)号：CH488856A

公开(公告)日：1969-12-31

申请号：CH867768

申请日：1968-06-11

Applicant: BASF AG

Inventor： BAUMANN HANS DR ,  MUELLER HANS-RICHARD DR

IPC: C07D311/60 ,  D06P3/76

公开(公告)号：DE2961068D1

公开(公告)日：1981-12-24

申请号：DE2961068

申请日：1979-08-04

Applicant: BASF AG

Inventor： LAAS HARALD DR ,  NISSEN AXEL DR ,  OPGENORTH HANS-JOACHIM DR ,  SCHEUERMANN HORST DR ,  MUELLER HANS-RICHARD DR ,  SCHULTE WOLFGANG DR

IPC: C07D209/08 ,  C07D209/60 ,  C07D209/96 ,  C07D263/38 ,  C07D263/52

Abstract: A process for the preparation of an indolenine of the general formula I I where R, R1 and R2 are aliphatic radicals and R1 and R2 may also be linked and the ring A may be additionally substituted, wherein a compound of the formula II II is heated in the presence of a Lewis acid and of a halide. The products are valuable starting compounds for the preparation of dyes.

公开(公告)号：DE1770826A1

公开(公告)日：1972-01-20

申请号：DE1770826

申请日：1968-07-09

Applicant: BASF AG

Inventor： SEEFELDER MATTHIAS DR ,  MUELLER HANS-RICHARD DR

IPC: C07D209/46 ,  C07D27/00

Abstract: 1,264,150. Formylmethylene-isoindolinones. BADISCHE ANILIN- & SODA-FABRIK A.G. 8 July, 1969 [9 July, 1968], No. 34398/69. Heading C2C. [Also in Division D1] The invention comprises compounds of formula wherein R 1 and R 2 are each an aliphatic, cycloaliphatic, araliphatic or aromatic radical, or R 2 may be H or alkoxy (excepting the compound where R 1 =Me and R 2 =H), and a process for making them by reacting the corresponding R 2 -substituted-N-R 1 -o-acetylbenzamide with the reaction product of R 3 R 4 NCHO (where R 3 , R 4 are each an aliphatic or aromatic radical or NR 3 R 4 forms a heterocyclic ring) and an acid halide capable of replacing OH in organic compounds by halogen, in presence of an organic solvent, followed by hydrolysis.

公开(公告)号：CH514726A

公开(公告)日：1971-07-15

申请号：CH1581069

申请日：1969-10-23

Applicant: BASF AG

Inventor： HANSEN GUENTHER DR ,  MUELLER HANS-RICHARD DR

IPC: C07D263/42 ,  C09B23/01 ,  D06P1/16 ,  D06P3/54

公开(公告)号：DE3264098D1

公开(公告)日：1985-07-18

申请号：DE3264098

申请日：1982-02-01

Applicant: BASF AG

Inventor： TONNE PETER DR ,  MUELLER HANS-RICHARD DR ,  GOERTH HELMUT DR

IPC: C07C309/40 ,  C07C67/00 ,  C07C301/00 ,  C07C303/06 ,  C07C303/22 ,  C07C143/55

Abstract: A process for the preparation of compounds of the formula I I where R is alkyl, by sulfonation, chlorination and nitration starting from an alkylbenzene, wherein the alkylbenzene is sulfonated with from 2.5 to 3, preferably from 2.65 to 2.75, moles of concentrated sulfuric acid per mole of alkylbenzene, the reaction product is then reacted with from about 1.1 to 1.3 moles of chlorine in the absence of a catalyst, the product is subsequently nitrated with highly concentrated nitric acid at elevated temperatures and the nitro compound is isolated.

公开(公告)号：DE2961753D1

公开(公告)日：1982-02-25

申请号：DE2961753

申请日：1979-05-28

Applicant: BASF AG

Inventor： LINHART FRIEDRICH DR ,  GIRGENSOHN BJOERN DR ,  MERKLE HANS DR ,  SIEGEL HARDO DR ,  MUELLER HANS-RICHARD DR

IPC: C07D307/68

Abstract: A process for the preparation of a 2,5-dimethylfuran-3-carboxylic acid ester from an alpha -acyloxypropionaldehyde and an acetoacetic acid ester in the presence of anhydrous iron-III chloride.