[EN] METHOD FOR THE PREPARATION OF DIARYLISOXAZOLE SULFONAMIDE COMPOUNDS AND INTERMEDIATES<br/>[FR] PROCEDES DESTINES LA PREPARATION D'UN COMPOSE DE DIARYLISOXAZOLE SULFONAMIDE ET D'INTERMEDIAIRES
申请人:PHARMACIA CORP
公开号:WO2005123701A1
公开(公告)日:2005-12-29
The disclosure provides a method for the preparation of a diarylisoxazolé sulfonamide compound comprising contacting a deoxybenzoin with a secondary amine to form a diarylenamine compound; contacting the diarylenamine compound with an acetylating agent to form an acetyl diarylenamine compound; contacting the acetyl diarylenamine compound with a source of hydroxylamine to form an diaryl isoxazolol compound; eliminating water from the diaryl isoxazolol compound to form a diaryl isoxazole compound, chlorosulfonating the diarylisoxazole compound to form a chlorosulfonyl diaryl isoxazole compound; and contacting the chlorosulfonyl diaryl isoxazole compound with a source of ammonia to form the diarylisoxazole sulfonamide compound.
This invention relates to ortho-(isoxazolyl, isothiazolyl, pyrazolyl, thiadiazolyl, oxadiazolyl, and triazolyl)benzenesulfonamides and their use as herbicides.
这项发明涉及对氧代唑基、异噻唑基、吡唑基、噻二唑基、氧代二唑基和三唑基苯磺酰胺的使用作为除草剂。
Method for preparing benzenesulfonyl compounds
申请人:——
公开号:US20030105334A1
公开(公告)日:2003-06-05
The present disclosure provides a method for the preparation of aromatic sulfonyl halides by contacting a substituted phenyl compound with a halosulfonic acid and trifluoroacetic acid. The present disclosure further provides a method for the preparation of 4-[5-methyl-3-phenylisoxazol-4-yl]benzenesulfonamide which is useful in treating cyclooxygenase-2 related disorders.
[EN] METHOD FOR PREPARING BENZENESULFONYL COMPOUNDS<br/>[FR] PROCEDE DE PREPARATION DE COMPOSES DE BENZENESULFONYLE
申请人:PHARMACIA CORP
公开号:WO2003029230A1
公开(公告)日:2003-04-10
The present disclosure provides a method for the preparation of aromatic sulfonyl halides by contacting a substituted phenyl compound with a halosulfonic acid and trifluoroacetic acid. The present disclosure further provides a method for the preparation of 4-[5-methyl-3-phenylisoxazol-4-yl]benzenesulfonamide which is useful in treating cyclooxygenase-2 related disorders.