公开(公告)号：DE3885064D1

公开(公告)日：1993-11-25

申请号：DE3885064

申请日：1988-11-12

Applicant: HOECHST AG

Inventor： BUCHHOLZ RAINER DR ,  SCHAEFER HANS ,  SCHLINGMANN MERTEN PROF DR ,  SIEGEMUND GUENTER DR ,  WALCH AXEL DR ,  WULLBRANDT DIETER DR

IPC: C12M3/02 ,  C12M1/00 ,  C12M1/04 ,  C12M1/08 ,  C12N1/00 ,  C12N5/10

公开(公告)号：AT96166T

公开(公告)日：1993-11-15

申请号：AT88118888

申请日：1988-11-12

Applicant: HOECHST AG

Inventor： BUCHHOLZ RAINER DR ,  SCHAEFER HANS ,  SCHLINGMANN MERTEN PROF DR ,  SIEGEMUND GUENTER DR ,  WALCH AXEL DR ,  WULLBRANDT DIETER DR

IPC: C12M3/02 ,  C12M1/00 ,  C12M1/04 ,  C12M1/08 ,  C12N1/00 ,  C12N5/10

公开(公告)号：AT95152T

公开(公告)日：1993-10-15

申请号：AT90113196

申请日：1990-07-11

Applicant: HOECHST AG

Inventor： CREMER HANS ROBERT DR ,  SIEGEMUND GUENTER DR ,  LENDLE WILHELM DR

IPC: C07C17/10 ,  C07C19/08 ,  C07C19/12

公开(公告)号：DE3882658D1

公开(公告)日：1993-09-02

申请号：DE3882658

申请日：1988-11-17

Applicant: HOECHST AG

Inventor： LAU JUERGEN DR ,  SIEGEMUND GUENTER DR

IPC: C07B61/00 ,  B01J23/42 ,  B01J23/70 ,  C07C67/00 ,  C07C201/00 ,  C07C205/35 ,  C07C205/38 ,  C07C213/00 ,  C07C213/02 ,  C07C217/78 ,  C07C217/90 ,  C08G59/40 ,  C08G69/40 ,  C08G73/10 ,  C08G73/20

Abstract: New fluorine-contg. cpds. based upon 4,4'-bis(2-(4-hydroxyphenyl)- hexafluoroisopropyl)diphenyl ether of formula A-C(CF3)2-p-C6H4-O-p-C6H4-C(CF3)2A (I) are claimed. In (I), A is the group of formula (i) or (ii) where R1, R2 independently are H, NO2, NH2 but R1 = H when R2 = NO2 or NH2 and vice versa; R3 = H or halogen. X = NO2, NH2. 4,4'-bis(2-(4'-hydroxyphenyl) hexafluoroisopropyl)diphenyl ether dissolved in an aprotic organic solvent with at least a stoichiometric amount of base, and halonitrobenzene, dihalonitrobenzene or dinitrobenzene, at 50-200 deq. C to give the nitrophenyl deriv. or by nitration with nitrating mixt. at -10 +50 deg. C, followed if necessary without isolation, by reduction to the amin-deriv. Ratio of diphenyl ether to amine-cpd. is 1:2-3, pref. 1:2.1-2.4 by moles. Inorqanic base, e.q. KOH, KH, K2CO3 used in ratio 1:2-4 with diphenyl ether.

公开(公告)号：DE58903652D1

公开(公告)日：1993-04-08

申请号：DE58903652

申请日：1989-09-28

Applicant: HOECHST AG

Inventor： LAU JUERGEN DR ,  SIEGEMUND GUENTER DR ,  ROEHRSCHEID FREIMUND DR

IPC: C07C205/58 ,  C07C209/00 ,  C07C211/52 ,  C07C229/52 ,  C07C233/65 ,  C07C237/30 ,  C07C245/08 ,  C08G69/26

公开(公告)号：DE3775626D1

公开(公告)日：1992-02-13

申请号：DE3775626

申请日：1987-06-10

Applicant: HOECHST AG

Inventor： HEUMUELLER RUDOLF DR ,  HERBRECHTSMEIER PETER DR ,  SIEGEMUND GUENTER DR ,  GROH WERNER DR

IPC: C07C69/653 ,  C07C51/347 ,  C07C51/367 ,  C07C51/38 ,  C07C67/00 ,  C07C67/14 ,  C07C253/00 ,  C07C253/30 ,  C07C255/55 ,  C08F20/22 ,  C08F20/50 ,  C08F30/04 ,  C08F120/02 ,  C08F120/22 ,  C08G16/00

Abstract: Alpha-fluoroacrylic acid phenyl esters of formula (I) are claimed. R = 1-8C halo-alkyl; p = 0, 1, 2 or 3; X = Hal; n = 0 or 1-5; (X can be different Hal when n is above 1); Y = H, CN, X or R; m = 0 or 1; n + m + p = 1-5. (I) are prepd. by (a) reaction of dimethyl alpha-fluoromalonate (II) with formaldehyde, (b) hydrolysis of the resulting hydroxymethylated ester, decarbonxylation, and dehydration, and (c) esterification of the resulting alpha-fluoroacrylic acid or its acid halide with the corresp. phenol or alkali phenolate. Pref. reaction temps. are 5-40 deg. C (stage a), 90-110 deg. C (b), and -10 to +50 deg. C (c).

公开(公告)号：DE4020185A1

公开(公告)日：1992-01-02

申请号：DE4020185

申请日：1990-06-25

Applicant: HOECHST AG

Inventor： ROEHRSCHEID FREIMUND DR ,  APPEL WOLFGANG DR ,  SIEGEMUND GUENTER DR

IPC: B01J31/26 ,  B01J31/32 ,  C07B61/00 ,  C07C51/265 ,  C07C63/72

公开(公告)号：AT55106T

公开(公告)日：1990-08-15

申请号：AT86106573

申请日：1986-05-14

Applicant: HOECHST AG

Inventor： HEUMUELLER RUDOLF DR ,  SIEGEMUND GUENTER DR ,  GROH WERNER DR ,  WIENERS GERHARD DR ,  HERBRECHTSMEIER PETER DR

IPC: C07C51/377 ,  C07C51/60 ,  C07C57/54 ,  C07C67/14 ,  C07C67/31 ,  C07C69/653 ,  C08F20/24

公开(公告)号：DE3901001A1

公开(公告)日：1990-07-19

申请号：DE3901001

申请日：1989-01-14

Applicant: HOECHST AG

Inventor： STRUTZ HEINZ DR ,  SIEGEMUND GUENTER DR ,  FINKE MANFRED DR

IPC: C07C59/135 ,  C07C51/58 ,  C08G65/22

Abstract: A continuous process for the preparation of perfluorinated carbonyl fluorides from hexafluoropropene oxide (HFPO), in which HFPO is continuously oligomerized in a catalyst solution in devices which allow separation of the heavy product phase from the catalyst phase during the reaction, is described. Different oligomer distributions can be achieved by choice of the catalyst and different operating temperatures. The reaction itself takes place always in the substantial absence of the product which is formed, and achieves a considerable saving in time.

公开(公告)号：DE3833338A1

公开(公告)日：1990-05-31

申请号：DE3833338

申请日：1988-09-30

Applicant: HOECHST AG

Inventor： LAU JUERGEN DR ,  SIEGEMUND GUENTER DR ,  ROEHRSCHEID FREIMUND DR

IPC: C07B61/00 ,  C07C22/08 ,  C07C63/72 ,  C07C205/58 ,  C07C209/42 ,  C07C211/52 ,  C07C227/04 ,  C07C229/52 ,  C07C233/65 ,  C07C237/30 ,  C07C245/08 ,  C08G59/50 ,  C08G69/26 ,  C08G69/28 ,  C08G73/10

Abstract: Compounds of the formula are described in which X is hydrogen, -NO2 or -NH2, and Y is -CH3, -COOH, -CONH2, -NH2 or -N=N-Z, where the group Z is with the proviso that, if Y is the group -N=N-Z, X is only -NO2, and if Y is the group -CH3, X is only hydrogen. A preferred compound is that of the formula which is prepared in a multistep process in which the compounds of the general formula (I) are also produced. The 3,4-diamino compound obtained is suitable for the production of high temperature-resistant polycondensates and mouldings, films and fibres.