Patents Assigned to HANGZHOU DUYI TECHNOLOGY CO. LTD.
  • METHODS FOR PREPARING SUBSTITUTED CHROMANONE DERIVATIVES
    Publication number: 20220324825
    Abstract: The present disclosure relates to a method for preparing a compound of formula (I). In the compound of formula (I), n may be 0 to 5 and each of R1, R2, R3, and R4 may be independently selected from the group consisting of H, —O-Alkyl, halo, alkyl, —CN, or —NO3.
    Type: Application
    Filed: June 17, 2022
    Publication date: October 13, 2022
    Applicant: HANGZHOU DUYI TECHNOLOGY CO. LTD.
    Inventors: Gaofeng BIAN, Zengying ZHENG
  • Methods for preparing substituted chromanone derivatives
    Patent number: 11377434
    Abstract: The present disclosure relates to a method for preparing a compound of formula (1). In the compound of formula (1), n may be 0 to 5 and each of R1, R2, R3, and R4 may be independently selected from the group consisting of H, —O-Alkyl, halo, alkyl, —CN, or —NO3.
    Type: Grant
    Filed: May 20, 2021
    Date of Patent: July 5, 2022
    Assignee: HANGZHOU DUYI TECHNOLOGY CO. LTD.
    Inventors: Gaofeng Bian, Zengying Zheng
  • METHODS FOR PREPARING SUBSTITUTED CHROMANONE DERIVATIVES
    Publication number: 20220024890
    Abstract: The present disclosure relates to a method for preparing a compound of formula (I). In the compound of formula (I), n may be 0 to 5 and each of R1, R2, R3, and R4 may be independently selected from the group consisting of H, —O-Alkyl, halo, alkyl, —CN, or —NO3.
    Type: Application
    Filed: May 20, 2021
    Publication date: January 27, 2022
    Applicant: HANGZHOU DUYI TECHNOLOGY CO. LTD.
    Inventors: Gaofeng BIAN, Zengying ZHENG