Palladium-catalyzed carbonylation of (arylsulfonyliminoiodo)benzenes to arylsulfonyl isocyanates
作者:Gábor Besenyei、László I. Simándi
DOI:10.1016/s0040-4039(00)73576-3
日期:1993.4
In the presence of palladium complexes as catalysts, carbonylation of (arylsulfonyliminoiodo)benzenes to arylsulfonylisocyanates can be accomplished with 50–80% yield.
[structure: see text]. Pactamycin, one of the most complex and densely functionalized aminocyclitol antibiotics known, presents synthetic challenges that include reactivity and sterics, relative and absolute stereochemistry, and functional group compatibility and protection. An approach is reported that features four different types of (cyclopentane) face selective functionalization reactions and results
Triazole ureas demonstrate utility as agricultural chemicals and in particular as herbicides.
三唑脲类化合物作为农业化学品,特别是除草剂方面具有实用性。
Herbicidal sulfonamides
申请人:E. I. Du Pont de Nemours and Company
公开号:US04339267A1
公开(公告)日:1982-07-13
N-(heterocyclicaminocarbonyl)aryl and pyridylsulfonamides, useful for the regulation of plant growth and as pre-emergence and post-emergence herbicides.
N-(杂环氨基甲酰)芳基和吡啶磺酰胺,用于植物生长调节和作为除草剂。
Herbicidal pyridyl sulfonamides
申请人:E. I. Du Pont de Nemours and Company
公开号:US04906288A1
公开(公告)日:1990-03-06
Certain N-[(pyridyl or pyrimidyl)aminocarbonyl]arylsulfonamides, such as the compound methyl 2-[[N-(3-cyano-4,6-dimethylpyridin-2-yl)aminocarbonyl]aminosulfonyl]benzoa te, possess herbicidal activity.