N-doped porous carbon (NC) could be synthesized route from sugar cane bagasse, which are sustainable and widely available biomass waste. Preferred NC sample has a well-developed porous structure, the graphene-like...
Aniline-pyrimidines derivatives, especially Mepanipyrim are used as fungicides and obliging to control several diseases, particularly grey mould (Botrytis cinerea) of vegetables and vines. A series of novel Aniline-pyrimidines derivatives like Mepanipyrim have been synthesized by using novel strategy via Sonogashira/Suzuki cross-coupling reaction. High competence, novel and recyclable CLPNÀ Pd (cross-linked ploy(ionic liquid)s Nano gels) is used as a catalyst in this synthetic method which we recycled three times. Various characterization like XPS, DLS, XPA, X-rays, HNMR and CNMR have been done for confirmation of CLPNÀ Pd. For these two combined reactions we used a lower amount of catalyst, has advantages of wide substrate range, compatibility with multiple functional groups, and higher yields. In this novel technique of diversification two hetero aryl chlorides, 4-chloro-6-methyl-N-phenylpyrimidin-2amine and -chloro-6-methyl-N-(p-tolyl) pyrimidin-2-amine with hetero phenyl acetylene and hetero aryl boronic acid delivered the subsequent compounds with reasonable to excellent 50 %-93 % yields. All the diversified compounds have been verified by various spectroscopic analysis such as 1 HNMR, 13 CNMR, and HR-MS spectral study. The analysis and preliminary conclusion provided some reference value for further development of this kind of research and applications in the future.
We present a novel and effective photocatalytic method for the methylation of β‐diketones with controllable degrees of deuterium incorporation via development of new methyl sources. By utilizing a methylamine‐water system as the methyl precursor and a cascade assembly strategy for deuteration degree control, we synthesized methylated compounds with varying degrees of deuterium incorporation, showcasing the versatility of this approach. We examined a range of β‐diketone substrates and synthesized key intermediates for drug and bioactive compounds with varying degrees of deuterium incorporation, ranging from 0 to 3. We also investigated and discussed the postulated reaction pathway. This work demonstrates the utility of readily available reagents, methylamines and water, as a new methyl source, and provides a simple and efficient strategy for the synthesis of degree‐controllable deuterium‐labelled compounds.
An efficient method for carbon–carbon bond formation is described. The process employs the palladium-catalyzed and copper-mediated cross-coupling of quinoline-2-(1H)-thiones with arylboronic acids or alkynes through C–S bond cleavage without an inert atmosphere. The method provides rapid and general access to a diverse range of 2-substituted quinolines in a single step from a wide range of quinoline-2-(1H)-thiones and arylboronic acids or alkynes.
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