公开(公告)号：DK136717C

公开(公告)日：1978-05-01

申请号：DK398272

申请日：1972-08-11

Applicant: HOECHST AG

Inventor： SAHM W ,  HORN A

IPC: C09K3/00 ,  C07C45/70 ,  C07C45/71 ,  C07C47/575 ,  C07C49/84 ,  C07C205/35 ,  C07D263/56 ,  C07D263/60 ,  C07D307/77 ,  C07D307/79 ,  C07D307/81 ,  C07D307/92 ,  C07D307/93 ,  C07D413/04

Abstract: Benzofuranes are obtained by intramolecular condensation of aromatic oxo compounds having an oxymethylene group in ortho position. The condensation is effected with strongly alkaline agents in solution or in an alkali metal hydroxide melt. The products are useful as scintilators and optical brighteners.

公开(公告)号：BR7200668D0

公开(公告)日：1973-07-17

申请号：BR66872

申请日：1972-02-04

Applicant: HOECHST AG

Inventor： SAHM W ,  SCHINZEL E ,  ROESCH G

IPC: C07D307/79 ,  C07D307/80 ,  C07D307/81 ,  C07D307/92 ,  C07D307/93 ,  D06L3/12

公开(公告)号：IN144220B

公开(公告)日：1978-04-08

申请号：IN735CA1976

申请日：1976-04-27

Applicant: HOECHST AG

Inventor： SAHM W ,  SCHILLER W ,  HILLE E

IPC: C07D235/26 ,  C07D49/36

Abstract: 5-Acetoacetylamino benzimidazolone-(2) is obtained in high yield and excellent purity by reacting diketene with the aqueous solution of a salt of 5-amino-benzimidazolone-(2) and an acid having a pKa value of 1 to 7, preferably in the presence of an antioxidant and/or a reducing agent.

公开(公告)号：CA986514A

公开(公告)日：1976-03-30

申请号：CA149212

申请日：1972-08-11

Applicant: HOECHST AG

Inventor： SAHM W ,  HORN A

IPC: C09K3/00 ,  C07C45/70 ,  C07C45/71 ,  C07C47/575 ,  C07C49/84 ,  C07C205/35 ,  C07D263/56 ,  C07D263/60 ,  C07D307/77 ,  C07D307/79 ,  C07D307/81 ,  C07D307/92 ,  C07D307/93 ,  C07D413/04

Abstract: Benzofuranes are obtained by intramolecular condensation of aromatic oxo compounds having an oxymethylene group in ortho position. The condensation is effected with strongly alkaline agents in solution or in an alkali metal hydroxide melt. The products are useful as scintilators and optical brighteners.

公开(公告)号：BR7400946D0

公开(公告)日：1974-11-05

申请号：BR94674

申请日：1974-02-08

Applicant: HOECHST AG

Inventor： SAHM W ,  SCHINZEL E ,  BOSCH G

IPC: C08K5/00 ,  C07D271/10 ,  C07D307/79 ,  C07D307/85 ,  C08K5/45 ,  C08L1/00 ,  C08L23/00 ,  C08L27/00 ,  C08L33/00 ,  C08L33/02 ,  C08L67/00 ,  C08L77/00 ,  C08L101/00 ,  C09B57/00 ,  C07D99/02 ,  C11D3/28 ,  C11D7/54 ,  C11D9/30 ,  D06L3/12

公开(公告)号：BR7400187D0

公开(公告)日：1974-08-15

申请号：BR18774

申请日：1974-01-11

Applicant: HOECHST AG

Inventor： ROSCH G ,  SAHM W ,  SCHINZEL E

IPC: C07C1/32 ,  C07C15/50 ,  C07D263/56 ,  C07D333/08 ,  C07D333/16 ,  C07D333/24 ,  C07F9/40 ,  C07F9/653 ,  C09B57/00 ,  C11D3/42

Abstract: 1,3-Butadienes which are substituted at both terminal carbon atoms with phenyl, naphthyl, theinyl or furyl groups or one benzoxazolyl group are useful as optical brighteners for detergents. The butadienes, some of which are known, can be obtained by HORNER syntheses.

公开(公告)号：BR7205495D0

公开(公告)日：1973-07-17

申请号：BR549572

申请日：1972-08-11

Applicant: HOECHST AG

Inventor： SAHM W ,  ROSCH G

IPC: C09K11/06 ,  C07D307/77 ,  C07D307/79 ,  C08K5/00 ,  C08K5/1535 ,  C08K5/16 ,  C08K5/41 ,  C08L1/00 ,  C08L23/00 ,  C08L27/00 ,  C08L33/00 ,  C08L33/02 ,  C08L67/00 ,  C08L77/00 ,  C08L101/00 ,  C09B57/00 ,  C07D5/40 ,  D06L3/12 ,  C11D3/00 ,  C11D7/54

Abstract: Novel benzofurane compounds are obtained by intramolecular condensation reactions of the corresponding ketones. The products are useful as optical brighteners.

公开(公告)号：SE402107B

公开(公告)日：1978-06-19

申请号：SE7317062

申请日：1973-12-18

Applicant: HOECHST AG

Inventor： SAHM W

IPC: C07D307/78 ,  B01J10/00 ,  C07D307/77 ,  C07D307/79 ,  C07D307/80 ,  C07D307/87 ,  C07D307/92 ,  C07D407/02 ,  C07D409/06 ,  C07D413/04 ,  C09B57/00 ,  D06L3/12

Abstract: Novel azomethines are obtained when reacting a tertiary amine with an aromatic aldehyde or ketone having in orthoposition an activated methoxy group. These azomethines are capable of ring closure to yield a benzofurane and said tertiary amine. The benzofuranes are optical brighteners tranquilizers or intermediates for optical brighteners, fluorescent dyestuffs, scintiallators, sensibilizers for electrophotographic coatings.

公开(公告)号：DK133506C

公开(公告)日：1976-12-20

申请号：DK684373

申请日：1973-12-17

Applicant: HOECHST AG

Inventor： SAHM W

IPC: C07D307/78 ,  B01J10/00 ,  C07D307/77 ,  C07D307/79 ,  C07D307/80 ,  C07D307/87 ,  C07D307/92 ,  C07D407/02 ,  C07D409/06 ,  C07D413/04 ,  C09B57/00 ,  D06L3/12

Abstract: Novel azomethines are obtained when reacting a tertiary amine with an aromatic aldehyde or ketone having in orthoposition an activated methoxy group. These azomethines are capable of ring closure to yield a benzofurane and said tertiary amine. The benzofuranes are optical brighteners tranquilizers or intermediates for optical brighteners, fluorescent dyestuffs, scintiallators, sensibilizers for electrophotographic coatings.

公开(公告)号：DK93176A

公开(公告)日：1976-09-06

申请号：DK93176

申请日：1976-03-04

Applicant: HOECHST AG

Inventor： PROSSEL G ,  SAHM W ,  SCHINZEL E ,  ROSCH G

IPC: C08K5/00 ,  C07D413/04 ,  C08L1/00 ,  C08L7/00 ,  C08L21/00 ,  C08L23/00 ,  C08L27/00 ,  C08L33/00 ,  C08L33/02 ,  C08L67/00 ,  C08L77/00 ,  C08L101/00 ,  C09B57/00 ,  D06P1/00 ,  C07D