Twenty-six novel benzoylphenylurea chitin inhibitor derivatives have been synthesized in over 30~50% yield from chlorothalonil 1 via sequential fluorine exchange, aminolysis, hydrolysis, decarboxylation and acylation ...Twenty-six novel benzoylphenylurea chitin inhibitor derivatives have been synthesized in over 30~50% yield from chlorothalonil 1 via sequential fluorine exchange, aminolysis, hydrolysis, decarboxylation and acylation reactions.展开更多
Six novel benzoylphenylurea chitin inhibitor derivatives were synthesized in the yields of 30%_50% from the readily available starting material chlorothalonil 1 viasequential fluorine exchange, aminolysis, hydrolysis ...Six novel benzoylphenylurea chitin inhibitor derivatives were synthesized in the yields of 30%_50% from the readily available starting material chlorothalonil 1 viasequential fluorine exchange, aminolysis, hydrolysis and acylation reactions.展开更多
Six novel bis-benzoylphenylurea compounds have been synthesized from available compound chlorothalonil 1(2,4,5,6-tetrachloroisophthalonitrile) in yield of 30%～50%. The synthetic route has advantages of mild reaction ...Six novel bis-benzoylphenylurea compounds have been synthesized from available compound chlorothalonil 1(2,4,5,6-tetrachloroisophthalonitrile) in yield of 30%～50%. The synthetic route has advantages of mild reaction conditions and higher yields. All of the bis-benzoylphenylurea compounds were investigated by IR, 1H NMR, FAB-MS and HRMS. Preliminary insecticidal activities of the title compounds have been tested. The results showed the compounds had only weak activity against Mythimna Separata Walker and Culex Pipiens Pallens.展开更多
基金support of the Natural Science Foundation of Yunnan Province(1999B0005M)the Open Foundation of State Key Laboratory of Elemento-Organic Chemistry,Nankai University
文摘Twenty-six novel benzoylphenylurea chitin inhibitor derivatives have been synthesized in over 30~50% yield from chlorothalonil 1 via sequential fluorine exchange, aminolysis, hydrolysis, decarboxylation and acylation reactions.
基金Supported by the Natural Science Foundation of Yunnan Province(No.99B0 0 0 5 M) and the Open Foundation of StateKey L aboratory of Elemento- Organic Chemistry,Nankai University,P.R.China
文摘Six novel benzoylphenylurea chitin inhibitor derivatives were synthesized in the yields of 30%_50% from the readily available starting material chlorothalonil 1 viasequential fluorine exchange, aminolysis, hydrolysis and acylation reactions.
文摘Six novel bis-benzoylphenylurea compounds have been synthesized from available compound chlorothalonil 1(2,4,5,6-tetrachloroisophthalonitrile) in yield of 30%～50%. The synthetic route has advantages of mild reaction conditions and higher yields. All of the bis-benzoylphenylurea compounds were investigated by IR, 1H NMR, FAB-MS and HRMS. Preliminary insecticidal activities of the title compounds have been tested. The results showed the compounds had only weak activity against Mythimna Separata Walker and Culex Pipiens Pallens.
