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A convenient synthesis of quinazoline derivatives via cascade imino-Diels-Alder and oxidation reaction 被引量:1
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作者 Xue Ming Chen Hui Wei +1 位作者 Lu Yin Xing Shu Li 《Chinese Chemical Letters》 SCIE CAS CSCD 2010年第7期782-786,共5页
Quinazoline derivatives were synthesized fromα-iminoesters via a cascade imino-Diels-Alder and then oxidation reaction catalyzed with CuBr_2.This method provided a new strategy for preparing quinazoline derivatives w... Quinazoline derivatives were synthesized fromα-iminoesters via a cascade imino-Diels-Alder and then oxidation reaction catalyzed with CuBr_2.This method provided a new strategy for preparing quinazoline derivatives which may be useful in the synthesis of heterocyclic intermediates. 展开更多
关键词 QUINAZOLINES α-Iminoesters Imino-Diels-Alder reaction CuBr_2
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The exploration of chiral N-cyano sulfiliminyl dicarboxamides on insecticidal activities 被引量:1
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作者 Sha Zhou Shaa Zhou +9 位作者 Yong-Tao Xie Ru-Yi Jin Xiang-De Meng Dong-Kai Zhang Xue-Wen Hua Ming Liu Chang-Chun Wu Li-Xia Xiong Yu Zhao Zheng-Ming Li 《Chinese Chemical Letters》 SCIE CAS CSCD 2017年第7期1499-1504,共6页
Due to new mechanism of action and ecofriendly characteristics,dicarboxamide insecticides have attracted more and more attentions in modern pest management.A series of 20 dual chiral N-cyano sulfilimines containing tw... Due to new mechanism of action and ecofriendly characteristics,dicarboxamide insecticides have attracted more and more attentions in modern pest management.A series of 20 dual chiral N-cyano sulfilimines containing two centers(carbon and sulfur) were designed and synthesized.All title compounds were determined by ^1H NMR,high-resolution mass spectrometry(HRMS) and optical polarimeter.The preliminary results indicated that some of them exhibited favourable insecticidal activities against oriental armyworm(Pseudaletia separata Walker).These isomers exhibited different impact on activity following the sequence as(Sc,Ss) 〉(Sc,Rs),and the rule of title compounds' activity against oriental armyworm was 3-CF3≥2—CH3—4—Cl〉2,3,4-trifluro in the anilide moiety.The results indicated that these groups such as 3-CF3,2—CH3—4—Cl or 2,3,4-trifluro were inefficient to replace heptafluoroisopropyl group for high larvicidal activity,which provided some guidance for the further modifications of sulfiliminyl dicarboxamides. 展开更多
关键词 Dual chiral Sulfilimines Insecticidal activity Ryanodine receptor Dicarboxamides
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