Patents by Inventor Gurunath Mallappa Suryavanshi

Gurunath Mallappa Suryavanshi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Organocatalytic process for asymmetric synthesis of decanolides
    Patent number: 9809566
    Abstract: The present invention discloses organocatalytic process for asymmetric synthesis of highly enantioselective decanolide compounds in high yield with >99% ee. Further, the present invention disclose cost effective, improved organocatalytic process for asymmetric synthesis of highly enantioselective decanolides compounds from non-chiral, cheap, easily available raw materials.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: November 7, 2017
    Assignee: Council of Scientific and Industrial Research
    Inventors: Varun Rawat, Soumen Dey, Anil Maruti Shelke, Gurunath Mallappa Suryavanshi, Arumugam Sudalai
  • Organocatalytic process for asymmetric synthesis of decanolides
    Patent number: 9765048
    Abstract: The present invention discloses organocatalytic process for asymmetric synthesis of highly enantioselective decanolide compounds in high yield with >99% ee. Further, the present invention disclose cost effective, improved organocatalytic process for asymmetric synthesis of highly enantioselective decanolides compounds from non-chiral, cheap, easily available raw materials.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: September 19, 2017
    Assignee: Council of Scientific and Industrial Research
    Inventors: Varun Rawat, Soumen Dey, Anil Maruti Shelke, Gurunath Mallappa Suryavanshi, Arumugam Sudalai
  • Ortho-alkynyl anilines and process for preparation thereof
    Patent number: 9758476
    Abstract: The present invention relates to novel ortho alkynyl anilines of formula (I) which are useful in synthesis of drug intermediates and natural products and process for preparation of these ortho alkynyl anilines of formula (I) via copper catalyzed Multi Component Reactions (MCR).
    Type: Grant
    Filed: June 22, 2015
    Date of Patent: September 12, 2017
    Assignee: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
    Inventors: Gurunath Mallappa Suryavanshi, Anil Maruti Shelke
  • ORTHO-ALKYNYL ANILINES AND PROCESS FOR PREPARATION THEREOF
    Publication number: 20170197911
    Abstract: The present invention relates to novel ortho alkynyl anilines of formula (I) which are useful in synthesis of drug intermediates and natural products and process for preparation of these ortho alkynyl anilines of formula (I) via copper catalyzed Multi Component Reactions (MCR).
    Type: Application
    Filed: June 22, 2015
    Publication date: July 13, 2017
    Applicant: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
    Inventors: Gurunath Mallappa SURYAVANSHI, Anil Maruti SHELKE
  • ORGANOCATALYTIC PROCESS FOR ASYMMETRIC SYNTHESIS OF DECANOLIDES
    Publication number: 20160272608
    Abstract: The present invention discloses organocatalytic process for asymmetric synthesis of highly enantioselective decanolide compounds in high yield with >99% ee. Further, the present invention disclose cost effective, improved organocatalytic process for asymmetric synthesis of highly enantioselective decanolides compounds from non-chiral, cheap, easily available raw materials.
    Type: Application
    Filed: May 27, 2016
    Publication date: September 22, 2016
    Inventors: Varun Rawat, Soumen Dey, Anil Maruti Shelke, Gurunath Mallappa Suryavanshi, Arumugam Sudalai
  • ORGANOCATALYTIC PROCESS FOR ASYMMETRIC SYNTHESIS OF DECANOLIDES
    Publication number: 20160272609
    Abstract: The present invention discloses organocatalytic process for asymmetric synthesis of highly enantioselective decanolide compounds in high yield with >99% ee. Further, the present invention disclose cost effective, improved organocatalytic process for asymmetric synthesis of highly enantioselective decanolides compounds from non-chiral, cheap, easily available raw materials.
    Type: Application
    Filed: May 27, 2016
    Publication date: September 22, 2016
    Inventors: Varun Rawat, Soumen Dey, Anil Maruti Shelke, Gurunath Mallappa Suryavanshi, Arumugam Sudalai
  • Organocatalytic process for asymmetric synthesis of decanolides
    Patent number: 9353077
    Abstract: The present invention discloses organocatalytic process for asymmetric synthesis of highly enantioselective decanolide compounds in high yield with >99% ee. Further, the present invention disclose cost effective, improved organocatalytic process for asymmetric synthesis of highly enantioselective decanolides compounds from non-chiral, cheap, easily available raw materials.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: May 31, 2016
    Assignee: Council of Scientific and Industrial Research
    Inventors: Varun Rawat, Soumen Dey, Anil Maruti Shelke, Gurunath Mallappa Suryavanshi, Arumugam Sudalai
  • Process for preparation of alkynyl carboxylic acids
    Patent number: 9302970
    Abstract: The invention provides a simple, efficient, environmentally friendly catalytic system for direct carboxylation reactions using CO2 under mild conditions. A single step heterogeneous catalytic process for preparation of alkynyl carboxylic acids is disclosed.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: April 5, 2016
    Assignee: Council of Scientific & Industrial Research
    Inventors: Ravindra Dattatray Aher, Madhuri Hanumant Gade, Reddy Santhosh Rekula, Pratibha Uttam Karabal, Gurunath Mallappa Suryavanshi, Arumugam Sudalai
  • ORGANOCATALYTIC PROCESS FOR ASYMMETRIC SYNTHESIS OF DECANOLIDES
    Publication number: 20150210665
    Abstract: The present invention discloses organocatalytic process for asymmetric synthesis of highly enantioselective decanolide compounds in high yield with >99% ee. Further, the present invention disclose cost effective, improved organocatalytic process for asymmetric synthesis of highly enantioselective decanolides compounds from non-chiral, cheap, easily available raw materials.
    Type: Application
    Filed: September 6, 2013
    Publication date: July 30, 2015
    Inventors: Varun Rawat, Soumen Dey, Anil Maruti Shelke, Gurunath Mallappa Suryavanshi, Arumugam Sudalai
  • PROCESS FOR PREPARATION OF ALKYNYL CARBOXYLIC ACIDS
    Publication number: 20150025269
    Abstract: The invention provides a simple, efficient, environmental friendly catalytic system for the direct carboxylation reaction using CO2 under mild condition. A single step heterogeneous catalytic process for preparation of alkynyl carboxylic acids of formula I is disclosed.
    Type: Application
    Filed: January 25, 2013
    Publication date: January 22, 2015
    Inventors: Ravindra Dattatray Aher, Madhuri Hanumant Gage, Reddy Santhosh Rekula, Pratibha Uttam Karabal, Gurunath Mallappa Suryavanshi, Arumugam Sudalai
  • Aziridination of olefins
    Patent number: 8558010
    Abstract: A process for aziridination of olefins using NaIO4/alkali metal bromide/H+/Chloramine-T combination in presence of dipolar aprotic solvent under ambient conditions to obtain aziridines is disclosed.
    Type: Grant
    Filed: October 7, 2011
    Date of Patent: October 15, 2013
    Assignee: Council of Scientific & Industrial Research
    Inventors: Pratibha Uttam Karbal, Pandurang Vilasrao Chouthaiwale, Gurunath Mallappa Suryavanshi, Arumugam Sudalai, Tanveer Mahamadali Shaikh
  • Process for the preparation of ?-amino alcohol
    Patent number: 8440844
    Abstract: A high-yielding enantioselective synthesis of the bioactive (S)—N-(5-chlorothiophene-2-sulfonyl)-?,?-diethylalaniol (7.b.2), a Notch-1-sparing ?-secretase inhibitor metabolite (with EC50=28 nM) effective in reduction of A? production in vivo, has been realized starting from readily available 3-pentanone. The key steps of the synthesis are proline-catalyzed ?-aminooxylation and ?-amination of aldehyde; the latter contributing an overall yield of 50-75% and 90-99% enantiomeric excess.
    Type: Grant
    Filed: October 13, 2011
    Date of Patent: May 14, 2013
    Assignee: Council of Scientific & Industrial Research
    Inventors: Varun Rawat, Pandurang Vilasrao Chouthaiwale, Vilas Bhiku Chavan, Gurunath Mallappa Suryavanshi, Arumugam Sudalai
  • Process for the Preparation of Beta-Amino Alcohol
    Publication number: 20120330031
    Abstract: A high-yielding enantioselective synthesis of the bioactive (S)—N-(5-chlorothiophene-2-sulfonyl)- ?,?-diethylalaniol (7.b.2), a Notch-1-sparing ?-secretase inhibitor metabolite (with EC50=28 nM) effective in reduction of A? production in vivo, has been realized starting from readily available 3-pentanone. The key steps of the synthesis are proline-catalyzed ?-aminooxylation and ?-amination of aldehyde; the latter contributing an overall yield of 50-75% and 90-99% enantiomeric excess.
    Type: Application
    Filed: October 13, 2011
    Publication date: December 27, 2012
    Applicant: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
    Inventors: Varun Rawat, Pandurang Vilasrao Chouthaiwale, Vilas Bhiku Chavan, Gurunath Mallappa Suryavanshi, Arumugam Sudalai
  • Aziridination of Olefins
    Publication number: 20120215011
    Abstract: A process for aziridination of olefins using NaIO4/alkali metal bromide/H+/Chloramine-T combination in presence of dipolar aprotic solvent under ambient conditions to obtain aziridines is disclosed.
    Type: Application
    Filed: October 7, 2011
    Publication date: August 23, 2012
    Applicant: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
    Inventors: Pratibha Uttam Karbal, Pandurang Vilasrao Chouthaiwale, Gurunath Mallappa Suryavanshi, Arumugam Sudalai, Tanveer Mahamadali Shaikh