The title compd. (I; R=ethyl, isopropyl) was prepd. by the reaction of 2-cyanobenzene sulfonic acid (II') with 2,6-dialkylaniline (III). Thus, 2.01g 2-cyanobenzene sulfonic acidCl was mixed with 3.0g 2,6-diethylaniline at 150oC to give 1.3g 2-cyano-N-(2',6'-diethylphenyl) -benzene sulfonamide (I; R=ethyl). A compn. contg. I (R=ethyl) 20 parts, clay 10 parts, diatomaceous earth 65 parts, lignin sulfonate 3 parts, and polyoxyethylenalkylaryl ether 2 parts (100-150l/10 are) controlled Seath blight in rice. Rice seeds infected with Rhizoctonia type IIIA and treated with 200 ppm I gave 100% germination and 95-100% perfect plants.
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机译：标题已完成。制备（I; R ＝乙基，异丙基）。通过2-氰基苯磺酸（II'）与2,6-二烷基苯胺（III）的反应。因此，在150℃下将2.01g 2-氰基苯磺酸Cl与3.0g 2,6-二乙基苯胺混合，得到1.3g 2-氰基-N-（2'，6'-二乙基苯基）-苯磺酰胺（I; R =乙基） 。一个compn。续在水稻中控制I（R ＝乙基）20份，粘土10份，硅藻土65份，木质素磺酸盐3份和聚氧乙烯亚烷基芳基醚2份（100-150l / 10）。感染IIIA型根瘤菌并用200 ppm I处理的水稻种子发芽100％，植株达到95-100％。
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