1,2,3-benzoxathiazin-4(3h)-one 2-oxides and their preparation |
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| 申请号 | US3780030D | 申请日 | 1971-10-29 | 公开(公告)号 | US3780030A | 公开(公告)日 | 1973-12-18 |
| 申请人 | DOW CHEMICAL CO; | 发明人 | MORRIS L; | ||||
| 摘要 | 1,2,3-BENZOXATHIAZIN-4(3H)-ONE 2-OXIDES CORRESPONDING TO THE FORMULA 2,4-DI(O=),3-R,R''-3,4-DIHYDRO-1,2,3-BENZOXATHIAZINE WHEREIN R REPRESENTS H, PHENYL, HALOPHENYL, NITROPHENYL, OR HALONITROPHENYL AND R'' REPRESENTS H, HALO, DIHALO, OR PHENYL. THE COMPOUNDS ARE PREPARED BY REACTING A CORRESPONDING SALICYLAMIDE OR SALICYLANILIDE WITH THIONYL CHLORIDE, ADVANTAGEOUSLY IN THE PRESENCE OF A SOLVENT SUCH AS BENZENE OR METHYLENE CHLORIDE AND, IF DESIRED, IN THE PRESENCE OF AN ACID ACCEPTOR SUCH AS PYRIDINE OR A LOWER TRIALKYLAMINE. THE COMPOUNDS ARE USEFUL AS PESTICIDES. |
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| 说明书全文 | |||||||
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