Abstract: This invention relates to phenol sulfam(na)phthaleins possessing a 2-(2'-halomethylbenzoyl) group substituted on the N atom of the sulfam(na)phthalein ring, which compounds find utility as photographic optical filter agents and filter agent precursors.
Type:
Grant
Filed:
September 23, 1977
Date of Patent:
November 4, 1980
Assignee:
Polaroid Corporation
Inventors:
Stanley M. Bloom, Alan L. Borror, James W. Foley
Abstract: This invention relates to phenol sulfam(na)phthaleins possessing a ##STR1## group wherein R is selected from lower alkyl and phenyl, unsubstituted or substituted with at least one electron-withdrawing group on the N atom of the sulfam(na)phthalein ring, which compounds find utility as photographic optical filter agents and filter agent precursors.
Type:
Grant
Filed:
September 23, 1977
Date of Patent:
October 14, 1980
Assignee:
Polaroid Corporation
Inventors:
Stanley M. Bloom, Alan L. Borror, James W. Foley
Abstract: The present invention is concerned with synthesizing certain ##STR1## by reacting (a) a 3,3-disubstituted sulfam(na)phthalein wherein one of the 3-substituents is a 4'-hydroxy-1'-phenyl moiety or a 4'-hydroxy-1'-naphthyl moiety substituted in the 3'-position with a perhalomethylcarbinol group and (b) an acid halide, ##STR2## wherein W is chloro or bromo and Y is hydrogen or an electron-withdrawing group, preferably, in the presence of a zeolite molecular sieve or acid alumina to give (c) the corresponding ##STR3## The compounds produced are useful, for example, as pH-sensitive indicator dyes or as photographic light-screening dyes.
Abstract: 3-[4-(1,3-Diazacyclo-2-yl)]-1,2-benzisothiazoles, their addition salts with acids, their manufacture, and pharmaceutical formulations which contain these compounds as active ingredients and which may be used for the pharmacotherapy of cardiac arrhythmias.
Type:
Grant
Filed:
July 28, 1978
Date of Patent:
June 3, 1980
Assignee:
BASF Aktiengesellschaft
Inventors:
Helmut Hagen, Dieter Lenke, Gerda von Philipsborn
Abstract: This invention relates to phenol sulfam(na)phthaleins possessing a ##STR1## wherein R is selected from methyl, unsubstituted or substituted with one or two halo groups and phenyl, unsubstituted or substituted with alkyl, dimethylamino or nitro substituted on the N atom of the sulfam(na)phthalein ring, which compounds find utility as photographic optical filter agents and filter agent precursors.
Type:
Grant
Filed:
September 23, 1977
Date of Patent:
May 20, 1980
Assignee:
Polaroid Corporation
Inventors:
Stanley M. Bloom, Alan L. Borror, James W. Foley
Abstract: This invention relates to certain 3,3-di(4'-OP-carbocyclic aryl)-2,3-dihydrobenz[d]isothiazole-1,1-dioxides (and-2,3-dihydronaphtho[1,8-de]-1,2-thiazine-1,1-dioxides) and to the preparation thereof by reacting (a) at least 2 equivalents of (i) a 4'-OP-carbocyclic aryllithium compound wherein P is a protecting group compatible with organometallic reagents or (ii) a 4'-OP-carbocyclic arylMgE compound wherein P is a protecting group compatible with organometallic reagents and E is chloro, bromo or iodo and (b) 1 equivalent of a compound selected from a 3-chlorobenz[d] isothiazole-1,1-dioxide and a 3-chloronaphtho[1,8-de]-1,2-thiazine-1,1-dioxide to give the corresponding 3,3-di(4'-OP-carbocyclic aryl)-2,3-dihydrobenz[d]isothiazole-1,1-dioxide or the corresponding 3,3-di(4'-OP-carbocyclic aryl)-2,3-dihydronaphtho[1,8-de]-1,2-thiazine-1,1-dioxide, which compounds are useful in the synthesis of phenol and 1-naphthol sulfam(na)-phthaleins employed, for example, as photographic optical filter agents and filter agent
Type:
Grant
Filed:
September 23, 1977
Date of Patent:
March 4, 1980
Assignee:
Polaroid Corporation
Inventors:
Stanley M. Bloom, Alan L. Borror, James W. Foley
Abstract: New and valuable polycyclic compounds which contain nitrogen-containing rings and have a strong action on plants, agents for influencing plant growth containing these compounds, and a method of influencing plant growth with these compounds.
Type:
Grant
Filed:
March 28, 1977
Date of Patent:
February 19, 1980
Assignee:
BASF Aktiengesellschaft
Inventors:
Rolf Platz, Werner Fuchs, Norbert Rieber, Ulf-Rainer Samel, Johann Jung, Bruno Wuerzer
Abstract: The new compound 4-hydroxy-1,2-benzisothiazole and its derivatives, and their manufacture. The products are intermediates for new drugs which are useful in cardiac and circulatory disorders.
Type:
Grant
Filed:
January 23, 1978
Date of Patent:
February 19, 1980
Assignee:
BASF Aktiengesellschaft
Inventors:
Ulrich Ohnsorge, Helmut Hagen, Fritz-Frieder Frickel
Abstract: This invention relates to 3-(phenyl/naphthyl)-benz[d]isothiazole-1,1-dioxides wherein the 3-phenyl or the 3-naphthyl group is substituted in the para position with hydroxy blocked with certain protecting groups. These compounds are useful as intermediates in the synthesis of certain 3,3-disubstituted-2,3-dihydrobenz[d]isothiazole-1,1-dioxide dyes which find utility, for example, as photographic optical filter agents and filter agent precursors.
Type:
Grant
Filed:
September 23, 1977
Date of Patent:
January 1, 1980
Assignee:
Polaroid Corporation
Inventors:
Alan L. Borror, Louis Cincotta, Ernest W. Ellis, James W. Foley, Marcis M. Kampe
Abstract: This invention relates to carbocyclic aryl compounds substituted with a tetrahydro-2H,4H-1,3,6-dioxazocino moiety and to the preparation thereof. These compounds are useful as intermediates in the synthesis of certain 3,3-disubstituted-2,3-dihydrobenz[d]isothiazole-1,1-dioxide dyes which find utility as, for example, photographic optical filter agents and filter agent precursors.
Type:
Grant
Filed:
September 23, 1977
Date of Patent:
October 23, 1979
Assignee:
Polaroid Corporation
Inventors:
Louis Cincotta, James W. Foley, Marcis M. Kampe
Abstract: New aminopropanol derivatives of 4-hydroxy-1,2-benzisothiazole and their addition salts with acids, their preparation, and pharmaceutical formulations which contain the said compounds and may be used for the treatment and prophylaxis of cardiac and circulatory disorders.
Type:
Grant
Filed:
January 30, 1978
Date of Patent:
September 18, 1979
Assignee:
BASF Aktiengesellschaft
Inventors:
Fritz-Frieder Frickel, Helmut Hagen, Ulrich Ohnsorge, Albrecht Franke, Dieter Lenke, Josef Gries, Hans D. Lehmann