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تعداد نتایج: 304768 فیلتر نتایج به سال:
A palladium-catalyzed ortho-acylation of 2-benzyl-1,2,3-triazoles with aldehydes as an acyl source was developed. A wide variety of ketones containing 1,2,3-triazoles were obtained in good to excellent yields. This methodology provides a convenient access to the acylation of 2-substituted-1,2,3-triazoles.
An efficient and convenient method for the preparation of cis-bispyrimidodiazepinone derivatives has been described. A variety of substrates can participate in the process with good yields, making this methodology suitable for library synthesis in drug discovery efforts. The mechanistic course of the reaction suggests the involvement of reduction, coupling which determine the products' configur...
A highly efficient synthesis of a wide range of 2,5-disubstituted pyrazines from (Z)-β-haloenol acetates is described. The reactions are conducted under convenient conditions and provide products with excellent regioselectivity in moderate to excellent yields with a broad substrate scope, including a variety of aromatic and aliphatic haloenol acetates.
A convenient one-pot Cu(I)-catalyzed strategy for regioselective synthesis of trisubstituted furan derivatives has been developed via (2-furyl) carbene complexes. This process has opened a new synthetic route to a variety of α-carbonyl furans using air as the oxidant affording furans in good yields.
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