91703-57-0Relevant academic research and scientific papers
Palladium-Catalyzed Domino Cyclization/Phosphorylation of gem-Dibromoolefins with P(O)H Compounds: Synthesis of Phosphorylated Heteroaromatics
Chen, Chen,Ding, Jie,Liu, Liying,Huang, Yujie,Zhu, Bolin
supporting information, p. 200 - 205 (2021/10/29)
We presented a palladium-catalyzed domino cyclization/phosphorylation of gem-dibromoolefins, which utilize H-phosphinates and secondary phosphine oxides as the phosphine sources, respectively. A variety of phosphorylated heteroaromatics were obtained in m
Highly Efficient Synthesis of 2-Substituted Benzo[ b ]furan Derivatives from the Cross-Coupling Reactions of 2-Halobenzo[ b ]furans with Organoalane Reagents
Wen, Chang,Wu, Chuan,Luo, Ruiqiang,Li, Qinghan,Chen, Feng
supporting information, p. 3847 - 3861 (2021/07/02)
A highly efficient and simple route for the synthesis of 2-substituted benzo[ b ]furans has been developed by palladium-catalyzed cross-coupling reaction of 2-halobenzo[ b ]furans with aryl, alkynyl, and alkylaluminum reagents. Various 2-aryl-, 2-alkynyl-, and 2-alkyl-substituted benzo[ b ]furan derivatives can be obtained in 23-97% isolated yields using 2-3 mol% PdCl 2/4-6 mol% XantPhos as the catalyst under mild reaction conditions. The aryls bearing electron-donating or electron-withdrawing groups in 2-halobenzo[ b ]furans gave products in 40-97% isolated yields. In addition, aluminum reagents containing thienyl, furanyl, trimethylsilanyl, and benzyl groups worked efficiently with 2-halobenzo[ b ]furans as well, and three bioactive molecules with 2-substituted benzo[ b ]furan skeleton were synthesized. Furthermore, the broad substrates scope and the typical maintenance of vigorous efficiency on gram scale make this protocol a potentially practical method to synthesize 2-substituted benzo[ b ]furan derivatives. On the basis of the experimental results, a possible catalytic cycle has been proposed.
CYCLOPROPANE DERIVATIVE AND DRUG CONTAINING SAME
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Paragraph 0116, (2018/06/15)
A compound represented by the formula (I): wherein each symbol is as defined in the DESCRIPTION, or a pharmaceutically acceptable salt thereof has superior TRPA1 antagonist activity, and the compound or a pharmaceutically acceptable salt thereof is useful for the prophylaxis or treatment of diseases involving TRPA1 antagonist and TRPA1.
HETEROCYCLIC SULFONAMIDE DERIVATIVE AND MEDICINE CONTAINING SAME
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Paragraph 0125, (2019/01/04)
The present invention aims to provide a novel compound having a TRPA1 antagonist activity, a medicament containing the compound, TRPA1 antagonist, and a medicament possibly utilizable for the prophylaxis or treatment of a disease involving TRPA1. A compou
METHOXYIMINO COMPOUNDS AND FUNGICIDE COMPOSITION COMPRISING SAME
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Page/Page column 21-22, (2009/07/17)
The present invention provides a methoxyimino compound, and a fungicide composition comprising same as an active ingredient. The methoxyimino compound of the present invention, which has an excellent antifungal activity against a wide spectrum of fungi even at a low application rate, can be used to protect various crops.
