公开(公告)号：US20250051260A1

公开(公告)日：2025-02-13

申请号：US18933706

申请日：2024-10-31

Applicant: MAXUNITECH INC.

Inventor： Bangchi CHEN ,  Yinwei SUN ,  Zhongyuan WANG ,  Yehua SU ,  Xiaoyan XU ,  Haiping MU

IPC: C07C205/45 ,  A01N37/34 ,  A01P13/00

Abstract: Disclosed are a method for preparing 4-nitro-2-(trifluoromethyl) acetophenone and application thereof. The method includes:(i) reacting a compound (II) with a compound (III) in the presence of a base A to obtain a compound (IV); (ii) converting the compound (IV) into a compound (V) in the presence of a base B; (iii) reacting the compound (V) with an oxidant to obtain the compound (I); as shown in the following reaction scheme:

公开(公告)号：US20250059132A1

公开(公告)日：2025-02-20

申请号：US18933603

申请日：2024-10-31

Applicant: MAXUNITECH INC.

Inventor： Bangchi CHEN ,  Yinwei SUN ,  Zhongyuan WANG ,  Yi ZHONG

IPC: C07C253/30 ,  C07C45/64 ,  C07C201/12 ,  C07D249/08 ,  C07D301/02

Abstract: A method for preparing 2-substituted arylacetonitrile compound of formula (1), in which a substituted aromatic compound of formula (2) and a 2-cyanocarboxylate compound of formula (3) are directly reacted in the presence of a base to obtain the 2-substituted arylacetonitrile compound (1), as shown in the following reaction scheme: An application of the compound of formula (1) in the preparation of a triazole fungicide is also provided.