| 发明名称 | Preparation of haloalkoxyarylhydrazines and intermediates therefrom | ||
| 摘要 | The invention in this document is related to the field of preparation of haloalkoxyarylhydrazines and certain intermediates derived therefrom, where said intermediates are useful in the preparation of certain pesticides disclosed in U.S. Pat. No. 8,178,658. | ||
| 申请公布号 | US9604942(B2) | 申请公布日期 | 2017.03.28 |
| 申请号 | US201514725276 | 申请日期 | 2015.05.29 |
| 申请人 | Dow AgroSciences LLC | 发明人 | Ross, Jr. Ronald;Roth Gary |
| 分类号 | C07D249/08;C07C243/22;C07C249/02 | 主分类号 | C07D249/08 |
| 代理机构 | Barnes & Thornburg LLP | 代理人 | Lee Yung H.;Corvin Carl D.;Barnes & Thornburg LLP |
| 主权项 | 1. A process for preparing a compound of the formula 3.2wherein R is a (C1-C6)haloalkoxy, and R1 is —NO2, —C(O)OH or —C(O)O(C1-C6)alkyl comprising the step of contacting a compound of the formula 2.1 with an anhydrous inorganic acid in the presence of a polar, protic solvent to provide an imidate salt of the formula 2.2 wherein R1 is —NO2, —C(O)OH or —C(O)O(C1-C6)alkyl; R2 is (C1-C6)alkyl; and X⊖ is a counter ion of an inorganic acid. | ||
| 地址 | Indianapolis IN US | ||