公开(公告)号：US20230391762A1

公开(公告)日：2023-12-07

申请号：US18043431

申请日：2022-08-12

申请人： UPL Limited

发明人： Prashant Vasant Kini ,  Sopan Nagnath Gandhale ,  Debasish Sengupta ,  Sandip Sahebrao Gulve ,  Shrikant Muqutrao Anpat ,  Manish Madhukar Borse

IPC分类号： C07D413/12 ,  A01N43/80 ,  A01P13/00

CPC分类号： C07D413/12 ,  A01N43/80 ,  A01P13/00

摘要： The present invention relates to a process for preparation of Pyroxasulfone substantially free of undesired impurity, by oxidizing a compound of formula (II) at a temperature ranging from 40 to 80° C.