公开(公告)号：DE1950434A1

公开(公告)日：1971-04-22

申请号：DE1950434

申请日：1969-10-07

Applicant: BASF AG

Inventor： SCHECKER HANS-GEORG DR ,  KOEHLER WALDEMAR DR ,  ARMBRUST HERBERT ,  JUERGEN DR STURM HANS ,  KILPPER GERHARD DR

IPC: B01J27/00 ,  B01J31/00 ,  C07B61/00 ,  C07C1/00 ,  C07C2/42 ,  C07C13/465 ,  C07C67/00 ,  C07C15/20

Abstract: Continuous manufacture of 1-methyl-3-phenylindans by dimerization of styrene in the presence of acid and specific concentrations of starting material and end product. The products are starting materials for the manufacture of dyes and pesticides.

公开(公告)号：CH605497A5

公开(公告)日：1978-09-29

申请号：CH1610473

申请日：1973-11-15

Applicant: BASF AG

Inventor： EILINGSFELD HEINZ DR ,  BAUR KARL GERHARD DR ,  PATSCH MANFRED DR ,  PLATZ ROLF DR ,  SCHECKER HANS-GEORG DR ,  FISCHER MARTIN DR

IPC: C07C25/18 ,  B01J27/00 ,  B01J31/00 ,  C07B61/00 ,  C07C17/00 ,  C07C17/26 ,  C07C17/281 ,  C07C25/22 ,  C07C67/00 ,  C07C23/34

Abstract: 1440669 Substituted phenylindans BASF AG 16 Nov 1973 [18 Nov 1972 1 June 1973 30 May 1973] 53220/73 Heading C2C The invention comprises 1-methyl-3-(monohalogeno)-phenyl indans of the general Formula I in which R 1 , R 2 and R 3 are identical or different and each is alkyl or hydrogen and R 4 is halogen also dihalogeno-1-methyl-3-phenylindans of the general Formula II in which R 1 and R 2 are identical or different and each is alkyl or hydrogen and R 4 is a halogen substituent in the m- or p-position of the phenyl ring and in the 4-, 5- or 6-position of the indan nucleus, provided that when both radicals R 1 are methyl and one radical R 2 is hydrogen the other radical R 2 is alkyl. The compounds of Formula I may be prepared by reacting a mixture of styrene of the general Formula III and of halogenostyrene of the general Formula IV in which R 1 to R 4 have the above meanings, in the presence of phosphoric acid of at least 75% strength by weight and optionally, additionally to the acid, in the presence of an organic compound irradiated with light of 2000 to 8000 Š and capable of absorbing the said light. The compounds of Formula II in which R 1 and R 3 are identical or different and each is alkyl or hydrogen and R 4 is halogen may be obtained by reacting one or more halogeno styrenes of the general Formula IV as sole starting material(s) in the presence of phosphoric acid of at least 75% strength by weight and, additionally to the acid, in the presence of an organic compound irradiated with light of 2000 to 8000 Š and capable of absorbing the said light.

公开(公告)号：DE2134016A1

公开(公告)日：1973-01-18

申请号：DE2134016

申请日：1971-07-08

Applicant: BASF AG

Inventor： SCHECKER HANS-GEORG DR ,  KOEHLER WALDEMAR DR ,  SANDER BRUNO DR

IPC: C07D319/12 ,  C07D15/10

Abstract: 1387048 1,4-Dioxane BADISCHE ANILIN- & SODA-FABRIK AG 7 July 1972 [8 July 1971] 31929/72 Heading C2C Anhydrous 1,4-dioxane is prepared by mixing a catalyst consisting of SiF 4 , BF 3 or an adduct formed from BF 3 and 1,4-dioxane, with liquid ethylene oxide at a temperature of from -50‹ C. to 0‹ C. and keeping the mixture at a temperature of from -25‹ C to + 10‹ C. for 1-10 hours. A small amount of 1,3-dioxolane may also be formed.

公开(公告)号：DE2327867A1

公开(公告)日：1975-01-02

申请号：DE2327867

申请日：1973-06-01

Applicant: BASF AG

Inventor： SCHECKER HANS-GEORG DR ,  PATSCH MANFRED DR ,  FISCHER MARTIN DR ,  EILINGSFELD HEINZ DR ,  BAUR KARL GERHARD DR ,  PLATZ ROLF DR

IPC: C07C17/26 ,  C07C17/281 ,  C07C25/18

Abstract: 1-Methyl-3-halophenylindanes of formula (I) useful as intermediates for the prepn. of dyes and parasiticides, and dihalo-1-methyl-3-phenylindanes of formula (II), are prepd. by reacting a mixt. of a styrene of formula (II), are prepd. halostyrene of formula (IV) in the presence of phosphoric acid having a concn. of >=75% and opt. of org. cpds. absorbing light between 2000 and 8000 A, or by a similar reaction using halostyrenes of formula (IV) as starting materials. (where R1, R2 and R3 are each H, or alkyl, and R4 is halogen) (I) and (II) are given in good yields and method is commercially possible.

公开(公告)号：DE2222368A1

公开(公告)日：1973-11-22

申请号：DE2222368

申请日：1972-05-06

Applicant: BASF AG

Inventor： FISCHER MARTIN DR ,  QUADBECK-SEEGER HANS-JUERGEN D ,  KILPPER GERHARD DR ,  SCHECKER HANS-GEORG DR ,  KOEHLER WALDEMAR DR

IPC: C07C17/26 ,  C07C1/00 ,  C07C2/42 ,  C07C13/465 ,  C07C17/00 ,  C07C17/281 ,  C07C25/22 ,  C07C67/00 ,  C07C13/46

Abstract: A process for the production of 1-methyl-3-phenylindans by dimerization of styrenes in the presence of catalysts and of organic compounds which absorb light of from 2000 to 8000 A and which are irradiated with such light. The compounds which can be prepared by the process of the invention are valuable starting materials for the production of dyes and pest control agents.

公开(公告)号：CH529090A

公开(公告)日：1972-10-15

申请号：CH429670

申请日：1970-03-20

Applicant: BASF AG

Inventor： HANS JUERGEN DR STURM ,  HERBERT ARMBRUST ,  EISERT MANFRED DR ,  SCHECKER HANS-GEORG DR ,  BAYER HELMUT DR

IPC: C07C65/36 ,  C07C51/27 ,  C07C51/31 ,  C07C65/20

公开(公告)号：DE1959707A1

公开(公告)日：1971-06-03

申请号：DE1959707

申请日：1969-11-28

Applicant: BASF AG

Inventor： KOEHLER WALDEMAR DR ,  SCHECKER HANS-GEORG DR

IPC: C07C2/42 ,  C07C15/06

Abstract: 1-Methyl-3-phenyl-indanes of formula (I): (in which R1, R2 and R3 are H or alkyl and R3 may also be halogen) are prepd. by dimerisation of gaseous styrenes of formula (II) or cyclisation of 1,3-diphenyl-but-1-enes of formula (III): at a temp. above 150 degrees C in the presence of phosphoric acid, H2SO4 or liquid halogenated alkanecarboxylic acids, or at 100-150 degrees C in the presence of a mixt. contg. 79-10% P2O5, 1-60% H2SO4 and 20-30% H2O. (I) are intermediates for dyes and pesticides.