Sulfite Esters (i.e., Compounds Having The Sulfite Group, -o-s(=o)o-, Bonded Directly To At Least One Carbon, Which Carbon May Be Single Bonded To Any Atom But May Be Multiple Bonded Only To Carbon) Patents (Class 558/59)
  • Patent number: 8889896
    Abstract: A novel process is described for the preparation of pharmaceutically useful compounds such as 1-{4-[2-(azepan-1-yl)ethoxy]benzyl}-2-(4-hydroxyphenyl)-3-methyl-1H-indol-5-ol acetic acid commonly known as bazedoxifene acetate of the formula-1 using 2-(4-{[5-(benzyloxy)-2-[4-(benzyloxy)phenyl]-3-methyl-1H-indol-1-yl]methyl}phenoxy)ethyl-4-methylbenzenzene-1-sulfonate (formula 2a).
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: November 18, 2014
    Assignee: Divi's Laboratories, Ltd.
    Inventors: Murali Krishna Prasad Divi, Gundu Rao Padakandla, Bolneni Nageswara Rao, Dandu Venkata Suresh
  • Publication number: 20130217877
    Abstract: The present invention discloses novel aromatic ketone compounds with functional substiution groups at para- or meta positions which can be used as photo-initiators or effective components of photo-initiator mixtures for the photopolymerizations of ethylenically unsaturated systems. The preparation of these compounds is also disclosed.
    Type: Application
    Filed: November 4, 2011
    Publication date: August 22, 2013
    Applicant: SHENZHEN UV-CHEMTECH CO., LTD
    Inventors: Yongbo Zhang, Yanchao Wang, Yapeng Wang, Huaihai Song, Zhigang Wang
  • Publication number: 20080182203
    Abstract: A photoresist composition includes about 4% to about 10% by weight of a photoresist resin, about 0.1% to about 0.5% by weight of a photoacid generator having a sulfonium-salt cationic group and a sulfonium-salt anionic group containing a carboxyl group as a hydrophilic site and a remainder of a solvent. The photoresist composition may form a photoresist pattern having a uniform profile.
    Type: Application
    Filed: January 24, 2008
    Publication date: July 31, 2008
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Hyo-Jin Yun, Young-Gil Kwon, Young-Ho Kim, Do-Young Kim, Jae-Hee Choi, Se-Kyung Baek
  • Patent number: 7335787
    Abstract: The invention provides a high-yield method for producing onium salt derivatives useful as agents, such as acid-generators, employed in chemically amplified resists; and to provide novel onium salt derivatives. Reaction of an onium salt derivative containing a halide anion or a carboxylate anion with a sulfonic acid ester derivative or a phosphoric acid derivative provides an onium sulfate derivative or an onium phosphate derivative at high yield.
    Type: Grant
    Filed: September 11, 2003
    Date of Patent: February 26, 2008
    Assignee: Toyo Gosei Kogyo Co., Ltd.
    Inventors: Kyoichi Tomita, Shinji Ishii
  • Patent number: 7122699
    Abstract: The invention relates to a process for the preparation of organic boronic acid derivatives involving the reaction of an organic compound with diboronic acid in the presence of a Group 8-11 metal catalyst.
    Type: Grant
    Filed: June 13, 2003
    Date of Patent: October 17, 2006
    Assignee: Boron Molecular Limited
    Inventors: Sebastian Mario Marcuccio, Mary Rodopoulos, Helmut Weigold
  • Patent number: 7071346
    Abstract: This invention concerns olefins having a terminally disposed fluorocyclobutyl ring bearing an ionic functionality or a precursor thereto, a process for the production thereof, and polymers formed therefrom.
    Type: Grant
    Filed: May 1, 2003
    Date of Patent: July 4, 2006
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Peter Arnold Morken, Paul R. Resnick, Lin Wang
  • Patent number: 6693187
    Abstract: Phosphinoamidite carboxylates and analogs are provided that have the structure of formula (I) wherein R1, R2, R3, R4, X, Y, Z and n are as defined herein. The compounds are useful as phosphitylating agents, e.g., in the phosphitylation of 3′ and 5′ hydroxyl groups of nucleosides and oligonucleotides. Also provided are phosphonocarboxylate and H-phosphonite carboxylate analogs of the compounds of formula (I). The compounds enable synthesis of phosphinocarboxylate and phosphonocarboxylate oligonucleotides having reduced internucleotide charge and enhanced nuclease resistance.
    Type: Grant
    Filed: October 17, 2000
    Date of Patent: February 17, 2004
    Assignee: Lievre Cornu LLC
    Inventor: Douglas J. Dellinger
  • Publication number: 20030144542
    Abstract: Compounds characterized generally as propargyl glycine amino propargyl diol derivatives are useful as renin inhibitors for the treatment of hypertension.
    Type: Application
    Filed: November 28, 2001
    Publication date: July 31, 2003
    Inventors: Gunnar J. Hanson, John S. Baran
  • Publication number: 20030130522
    Abstract: Compounds characterized generally as propargyl glycine amino propargyl diol derivatives are useful as renin inhibitors for the treatment of hypertension.
    Type: Application
    Filed: November 28, 2001
    Publication date: July 10, 2003
    Inventors: Gunnar J. Hanson, John S. Baran
  • Publication number: 20030049542
    Abstract: Refined ethylene sulfite exhibits an excellent storage stability when used as a constituent of an electrolyte. A method of producing same has a step of reacting ethylene glycol and thionyl chloride to producing raw ethylene sulfite, a rectifying step for rectifying the raw ethylene sulfite, and a refining process for refining the raw ethylene sulfite or the rectified ethylene sulfite conducted before or after the rectifying step. The refining process is at least one process selected from the group consisting of a washing process, a dehydration process by total reflux distillation, a second rectifying process, and an absorbing process. Refined ethylene sulfite produced according to the method contains chloroethanol in an amount of not more than 1000 ppm.
    Type: Application
    Filed: August 26, 2002
    Publication date: March 13, 2003
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Toshimitsu Kato, Norioki Mine, Minoru Kotato
  • Patent number: 6423861
    Abstract: Dimethyl sulfite is prepared by transesterification of a cyclic alkylene sulfite of at least 2 carbon atoms with methanol, in the presence or absence of a catalyst, by a process which is carried out continuously in a column.
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: July 23, 2002
    Assignee: BASF Aktiengesellschaft
    Inventors: Klaus Halbritter, Hans-Josef Sterzel, Christian Tragut, Eva Freudenthaler
  • Patent number: 6118016
    Abstract: A process for preparing phenoxyphenylsulfonyl halides, which are useful intermediates for the preparation of matrix metalloproteinase inhibitors.
    Type: Grant
    Filed: April 7, 1999
    Date of Patent: September 12, 2000
    Assignee: Pfizer Inc.
    Inventor: Joel M. Hawkins
  • Patent number: 5925759
    Abstract: HIV protease inhibitors inhibit or block the biological activity of the HIV protease enzyme, causing the replication of the HIV virus to terminate. These compounds can be prepared by the novel methods of the present invention using the novel inventive intermediates.
    Type: Grant
    Filed: September 5, 1997
    Date of Patent: July 20, 1999
    Assignee: Agouron Pharmaceuticals, Inc.
    Inventors: Srinivasan Babu, Bennett C. Borer, Travis P. Remarchuk, Robert J. Szendroi, Kathleen R. Whitten, Juliette K. Busse, Kim F. Albizati
  • Patent number: 5600035
    Abstract: Photoreactive compounds are synthesized from 2,5- or 2,6-dintrobenzyl groups. Also disclosed are methods of synthesizing reactive monomers containing 2,5- or 2,6-dintrobenzyl groups.
    Type: Grant
    Filed: July 13, 1994
    Date of Patent: February 4, 1997
    Assignee: PPG Industries, Inc.
    Inventors: Charles F. Kahle, II, Neil D. McMurdie, Raphael O. Kollah, Daniel E. Rardon, Gregory J. McCollum
  • Patent number: 5347040
    Abstract: Onium salt capable of generating acid upon exposure to actinic radiation having the following structure:(R.sub.1).sub.a (R.sub.2).sub.b (R.sub.3).sub.c Q.sup.+ --A--M.sup.+ X.sup.- --B--X'.sup.-where:Q is S;R.sub.1, R.sub.2 and R.sub.3 are independently substituted or unsubstituted aromatic, aliphatic, or aralkyl groups having 7-18 carbon atoms;M.sup.+ is a cationic organic radical;A is a divalent radical selected from the group of hindered alkylene groups, substituted or unsubstituted aromatic or aralkyl groups;B is a divalent aromatic sensitizer which absorbs radiation having a wavelength longer than 300 nm and is capable of transferring an electron to Q,x.sup.- and X'.sup.- are anionic groups; and wherein A provides a spatial separation between Q and M, and B provides a spatial separation between X and X', such that the spatial separation provided by A between Q and M is substantially the same as the spatial separation provided by B between X and X'.
    Type: Grant
    Filed: December 9, 1992
    Date of Patent: September 13, 1994
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Arnost Reiser, Xiaohua He
  • Patent number: 4813971
    Abstract: Textile materials made of natural or synthetic polyamides or mixtures thereof are dyed in the presence of a cyclic ester of sulfurous acid with an aliphatic 1,2-diol in place of a customary pH regulant.
    Type: Grant
    Filed: February 4, 1988
    Date of Patent: March 21, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Sigismund Heimann, Michele Vescia, Attila Bereck, Hermann Sulz, Ingrid Steenken
  • Patent number: 4606852
    Abstract: Normally flammable organic polymers are rendered flame retardant by the incorporation of compounds corresponding to the formula: ##STR1## wherein each X is independently Br or Cl. The normally flammable organic polymers are selected from polyolefin, such as polypropylene, epoxy resins, unsaturated polyesters and styrene-based resins. The sulfite ester of tribromo neopentyl alcohol is preferred.
    Type: Grant
    Filed: January 9, 1985
    Date of Patent: August 19, 1986
    Assignee: Bromine Compounds Ltd.
    Inventors: Avraham Teuerstein, Michael Rumack, Shaul Yanai
  • Patent number: 4592873
    Abstract: The present invention relates to novel compounds, useful as flame retardants for normally flammable organic polymers, which correspond to the formula: ##STR1## wherein each X is independently Br or Cl. The novel compounds may be prepared by the reaction of halogenated neopentyl alcohol with thionyl chloride.
    Type: Grant
    Filed: January 9, 1985
    Date of Patent: June 3, 1986
    Assignee: Bromine Compounds, Ltd.
    Inventors: Avraham Teuerstein, Rubin Scharia, Milon Sprecher