5910-23-6Relevant articles and documents
Non-metal catalytic method for preparing 1,3-diketone compounds based on acetyenic ketone
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, (2020/02/19)
The invention discloses a non-metal catalytic method for preparing 1,3-diketone compounds based on acetyenic ketone. The preparation method is a stepwise method or a one-pot method. The stepwise method comprises the following steps: mixing an acetyenic ketone compound I, a nitrogen-containing aromatic compound II and a No.1 base for a reaction, performing separation and purification to obtain an intermediate product, mixing the intermediate product and a No.2 base for a reaction, and performing separation and purification to obtain the product; and the one-pot method comprises the following steps: firstly mixing an acetyenic ketone compound I and a nitrogen-containing aromatic compound II, adding a No.1 base, performing a reaction for a period of time, adding a No.2 base, continuing a reaction for a period of time, and finally performing separation and purification to obtain the product. The method provided by the invention has mild reaction conditions, simple operation and a higher yield, wherein the yield is generally 80% or more, and the method has greater practical application value in drug synthesis.
An effective preparation of both 1,3-diketones and nitriles from alkynones with oximes as hydroxide sources
Chen, Pei,Zhang, Qian-Qian,Guo, Jia,Chen, Lu-Lu,Wang, Yan-Bo,Zhang, Xiao
, p. 6958 - 6966 (2018/10/02)
An effective phosphine-catalyzed protocol has been established for the syntheses of 1,3-diketones and nitriles from alkynones with oximes as hydroxide surrogates. This method features the use of a phosphine catalyst, compatibility with various functional groups and ambient temperature, which makes this approach very practical. A plausible mechanism was proposed.
Synthesis, characterization and properties of furan-containing difluoroboron complexes
Liu, Chun,Zhang, Hao,Zhao, Jianzhang
, p. 92341 - 92348 (2016/10/09)
Novel difluoroboron β-diketonate complexes F1-F4 bearing a furan unit were synthesized and fully characterized. The effects of different substituents on the photoluminescence and redox properties of these new BF2 complexes were investigated systematically. The absorption and emission maxima of complexes F1-F4 were red-shifted compared to those of reference substance F0. Among them, the complexes F2 with a rigid naphthalene moiety and F3 with an electron donating methoxyl group demonstrated stronger fluorescent emission intensity, much higher quantum yields and longer lifetime values relative to other complexes. Cyclic voltammetry measurements revealed the reversible reduction waves of these BF2 complexes. DFT calculations supported the structural and spectroscopic data and confirmed the compositions of frontier molecular orbitals in the BF2 complexes. These new complexes exhibited different emission colors in solvent and might have potential applications in emitting devices.