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1.发明公开5-ALKOXY 1,2,4]TRIAZOLO 1,5-C]PYRIMIDINE-2(3H)-THIONE COMPOUNDS AND THEIR USE IN THE PREPARATION OF 2,2'-DITHIOBIS(5-ALKOXY 1,2,4]TRIAZOLO 1,5-C]-PYRIMIDINE) AND 2-CHLOROSULFONYL-5-ALKOXY 1,2,4]TRIAZOLO 1,5-C]PYRIMIDINE COMPOUNDS 失效5-烷氧基（1,2,4）三唑并（1,5-c）的嘧啶-2（3H）硫酮化合物和它们对2,2 *制备中使用 - 二硫代双（5-烷氧基（1,2,4）三唑并（ 1,5-C）嘧啶和2-氯磺酰基烷氧基-5-（1,2,4）三唑并（1,5-c）的嘧啶化合物。
公开(公告)号：EP0678092A1
公开(公告)日：1995-10-25
申请号：EP95901089.0
申请日：1994-10-31
申请人： DOWELANCO
发明人： OLMSTEAD, Thomas, A. , GONZALES, Michael, A. , ORVIK, Jon, A. , PEARSON, Douglas, L. , RINGER, James, W. , SHIANG, Dawn, L. , TAI, Jimmy, J. , WALLIN, Anne, P.
CPC分类号： C07D487/04
摘要： 2-Chlorosulfonyl-5-alkoxy(1,2,4)triazolo(1,5-c)pyrimidine compounds (I), such as 2-chlorosulfonyl-5-ethoxy-7-fluoro[1,2,4]triazolo-[1,5-c]pyrimidine, that are useful for the preparation of 5-alkoxy[1,2,4]-triazolo[1,5-c]pyrimidine-2-sulfonamide herbicides, were prepared in an improved manner from 5-alkoxy[1,2,4]triazolo[1,5-c]pyrimidine-2(3H)-thione compounds, such as 5-ethoxy-7-fluoro[1,2,4]triazolo[1,5-c]pyrimidine-2(3H)-thione, by oxidation with hydrogen peroxide to obtain novel 2,2'-dithio-bis(5-alkoxy[1,2,4]triazolo[1,5-c]pyrimidine) compounds, such as 2,2'-dithiobis(5-ethoxy-7-fluoro[1,2,4]triazolo[1,5-c]pyrimidine), and subsequent chloroxidation of these intermediate compounds.
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2.发明公开PROCESS FOR PREPARING N-(2,6-DICHLORO-3-METHYLPHENYL)-5-7-DIHALO 1,2,4]TRIAZOLO 1,5A]PYRIMIDINE-2-SULFONAMIDE BY CYCLIZATION AND HALO-DEHYDROXYLATION 失效用于生产N-（2,6-二氯-3-甲基苯基）-5,7-二卤代（1,2,4）三唑并（1.5A）嘧啶-2-磺酰胺环化和脱羟基HALO
公开(公告)号：EP0724586A1
公开(公告)日：1996-08-07
申请号：EP94930057.0
申请日：1994-10-05
申请人： DOWELANCO
CPC分类号： C07D487/04
摘要： The invention relates to a process for making DCSA by cyclization of DCM-ATSA with an acid and phosphorus pentachloride to produce DHSA and two isomeric compounds known as HCSA. The resulting compounds from the cyclization are halo-dehydroxylated to produce DCSA.
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