Patents by Inventor Akkattu Thankappan Biju

Akkattu Thankappan Biju 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).

  • Benzoxaphosphole compounds and a process for preparation thereof
    Patent number: 9902746
    Abstract: The present inventors prepared novel benzoxaphosphole compounds and shown a process for the synthesizing these novel compounds. The process of preparing the compounds is simple, transition metal free and gives product with high yield. The synthesized benzoxaphosphole compounds are expected to show potential biological.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: February 27, 2018
    Assignee: Council of Scientific & Industrial Research
    Inventors: Akkattu Thankappan Biju, Anup Bhunia, Trinadh Kaicharla
  • Oxindole compounds, solvent-free synthesis and use thereof
    Patent number: 9783496
    Abstract: The present invention discloses oxindole compounds and a single step, one pot reaction for the synthesis of oxindole derivates via a solvent free Passerini reaction of isocyanides, isatins and carboxylic acids.
    Type: Grant
    Filed: April 2, 2014
    Date of Patent: October 10, 2017
    Assignee: Council of Scientific & Industrial Research
    Inventors: Akkattu Thankappan Biju, Trinadh Kaicharla, Santhivardhana Reddy Yetra, Tony Roy
  • Transition-metal-free N-arylation of tertiary amines using arynes
    Patent number: 9650329
    Abstract: The present invention relates to transition-metal-free process for the synthesis of tertiary arylamines comprises coupling reaction between arynes and N,N-dimethyl aniline compounds in presence of 18-crown-6, KF and THF.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: May 16, 2017
    Assignee: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
    Inventors: Akkattu Thankappan Biju, Sachin Suresh Bhojgude, Trinadh Kaicharla
  • Novel Benzoxaphosphole Compounds and a Process for Preparation Thereof
    Publication number: 20170015691
    Abstract: The present inventors prepared novel benzoxaphosphole compounds and shown a process for the synthesizing these novel compounds. The process of preparing the compounds is simple, transition metal free and gives product with high yield. The synthesized benzoxaphosphole compounds are expected to show potential biological.
    Type: Application
    Filed: February 25, 2015
    Publication date: January 19, 2017
    Inventors: Akkattu Thankappan BIJU, Anup BHUNIA, Trinadh KAICHARLA
  • TRANSITION-METAL-FREE N-ARYLATION OF TERTIARY AMINES USING ARYNES
    Publication number: 20160137587
    Abstract: The present invention relates to transition-metal-free process for the synthesis of tertiary arylamines comprises coupling reaction between arynes and N,N-dimethyl aniline compounds in presence of 18-crown-6, KF and THF.
    Type: Application
    Filed: June 24, 2014
    Publication date: May 19, 2016
    Inventors: Akkattu Thankappan Biju, Sachin Suresh Bhojgude, Trinadh Kaicharla
  • OXINDOLE COMPOUNDS, SOLVENT-FREE SYNTHESIS AND USE THEREOF
    Publication number: 20160039755
    Abstract: The present invention discloses oxindole compounds and a single step, one pot reaction for the synthesis of oxindole derivates via a solvent free Passerini reaction of isocyanides, isatins and carboxylic acids.
    Type: Application
    Filed: April 2, 2014
    Publication date: February 11, 2016
    Applicant: Council of Scientific & Industrial Research
    Inventors: Akkattu Thankappan Biju, Trinadh Kaicharla, Santhivardhana Reddy Yetra, Tony Roy
  • Derivatives of benzoxazino quinoline, benzoxazino isoquinoline and processes for their preparation
    Patent number: 9206196
    Abstract: Novel benzoxazino quinoline derivatives of Formula (I) and benzoxazino isoquinoline derivatives of Formula (II) are provided: Also provided is a transition-metal-free multicomponent reaction of arynes, N-heterocycles, and carbonyl compounds leading to the diastereoselective synthesis of benzoxazino quinoline derivatives of Formula (I) and benzoxazino isoquinoline derivatives of formula (II) in good yields proceeding via 1,4-zwitterionic intermediates. The compounds possess anti-malarial activity.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: December 8, 2015
    Assignee: Council of Scientific & Industrial Research
    Inventors: Akkattu Thankappan Biju, Anup Bhunia, Dhanasekaran Shanmugam