Formation of Vicinal Secondary and All-Carbon Quaternary Stereocenters in Enantioenriched Diazenes via Branched-Selective Pd-Catalyzed Allylic Alkylation [0.03%]
钯催化支链选择性烯丙基化反应构建高光学纯度亚胺𬭩盐中的 vic-仲手性中心和全碳季碳手性中心
Adam J Zoll,Chloe S Cerione,Scott C Virgil et al.
Adam J Zoll et al.
The synthesis of enantioenriched alkyl diazenes with vicinal secondary and all carbon quaternary stereocenters via palladium-catalyzed allylic alkylation is reported. Diazenes were formed in high diastereoselectivity and modest enantioselec...
Chromatographic profiling of morin from in vitro raised mulberry leaves (Morus alba L. var. ichinose) treated with ethyl methane sulphonate (EMS) and sodium azide (NaN3) [0.03%]
乙基甲磺酸和钠盐处理下用高效液相色谱法定量测定白桑“Ichinose”离体培养叶中杨梅素含量的研究
Ishfaq Maqbool Lone,Asha Kushwah,Mohd Masarat Dar et al.
Ishfaq Maqbool Lone et al.
Mulberry (Morus spp.) foliage constitutes the chief food for the silkworm, Bombyx mori L. and thus has importance in silk industry. In Mulberry leaf, morin is one of the principal constituents present. The current study was undertaken to op...
Functional characterization of a Diazo-forming enzyme in meroterpenoid biosynthesis [0.03%]
茋类生物碱生源途径中偶氮形成酶的功能研究
Zhao-Xun Liang,Hartono Candra,Wan-Qiu Liu et al.
Zhao-Xun Liang et al.
Meroterpenoids are known for their distinct structure and hybrid biosynthetic origin. The biosynthetic gene clusters (BGCs) of several well-characterized meroterpenoids contain three genes whose functions have remained elusive. Recent studi...
Synthesis of Ethynyl Trifluoromethyl Sulfide and Its Application to the Synthesis of CF3S-Containing Triazoles [0.03%]
叠氮三氟甲基硫醚的合成及其在含三氟甲基硫唑化合物合成中的应用
Alejandra Riesco-Domínguez,Hussein Hammoudeh,Daniel Blanco-Ania et al.
Alejandra Riesco-Domínguez et al.
The unprecedented use of ethynyl trifluoromethyl sulfide (CF3S-C≡CH) as a synthetically useful building block has been described for the first time. It was reacted with various aromatic and aliphatic azides under copper-catalyzed condition...
Chemical capture of diazo metabolites reveals biosynthetic hydrazone oxidation [0.03%]
化学捕获叠氮代代谢物揭示了生物合成杂环化合物氧化反应
Katarina Pfeifer,Devon Van Cura,Kelvin J Y Wu et al.
Katarina Pfeifer et al.
Chemically reactive microbial natural products have enabled therapeutic development 1,2 via their well-established bioactivities including anticancer, 3 antibiotic, 4,5 and antioxidant 6 activities. However, discovery of reactive metabolite...
Relay Rh(II)/Pd(0) Dual-Catalyzed Three-Component Allylation of α-Diazo Carbonyl Compounds via Ketene Intermediates: Construction of All-Carbon Quaternary Centers [0.03%]
通过内酰胺中间体的Rh(II)/Pd(0)双催化α-叠氮羰基化合物的三组分烯丙基化：用于构建全碳季碳中心的方法
Yu-Hua Song,Xiao-Yan Huang,Bao-Qing Mi et al.
Yu-Hua Song et al.
A relay Rh(II)/Pd(0) dual-catalyzed three-component allylic alkylation of alcohols, α-diazo 1,3-diketones, and allyl reagents is successfully developed, which provides a highly chemoselective method for the one-pot synthesis of acyclic α-...
Direct Optical Lithography Using Diazirine Cross-Linker for Quantum Dot Light Emitting Diodes and Enhancing Photoluminescence Quantum Yield through Post-treatment [0.03%]
使用叠氮交联剂的直接光学光刻法用于量子点发光二极管及通过后期处理提高光致发光量子产率
Namji Lee,Donghyun Choi,Keum-Jin Ko et al.
Namji Lee et al.
The precise patterning of colloidal quantum dots (QDs) is essential for fabricating high-resolution subpixels in optoelectronic devices, including quantum dot light-emitting diodes (QLEDs). However, conventional photolithographic methods us...
Substituted Diaziridines via [2 + 1] Annulation of Dialkyl Azodicarboxylates with Diazo Esters and In Situ Pyridinium Ylides [0.03%]
原位吡啶
Subhankar Bera,Haya Khan,Dhiraj Barman et al.
Subhankar Bera et al.
Herein, we report the [2 + 1] annulation reactions of dialkyl azodicarboxylate with various diazoesters and in situ generated pyridinium ylides, resulting in the formation of substituted diaziridines in high yields. Notably, these reactions...
α,β-Unsaturated Diazoketones as Building Blocks to Piperidine Alkaloids: Total Synthesis of (-)-Cassine [0.03%]
作为生物碱皮哌啶合成砌块的α,β-不饱和叠氮酮：(-)-肾叶树 alkaloid 合成
João Pedro de F Lima,Rafael D C Gallo,Antonio C B Burtoloso
João Pedro de F Lima
The total synthesis of (-)-cassine, a piperidine alkaloid, was accomplished in 10 steps, starting from N-Cbz-O-TBDPS-l-serinal. Key transformations include the preparation of a novel α,β-unsaturated α'-methyl diazoketone, followed by its...
Sequential Radiosynthetic Methodology: Assembly of Boronic Ester Precursors on a Diol Resin and Radioiodination Using Copper-Mediated Radioiododeboronation and Azide-Alkyne Cycloaddition [0.03%]
序贯放射合成法：在二醇树脂上装配硼酸酯前体，并通过铜介导的放射性碘脱硼化和叠氮-炔环加成进行放射性碘标记
Yuto Kondo,Hiroyuki Kimura,Mamiko Tanaka et al.
Yuto Kondo et al.
A streamlined radiosynthetic methodology enables the precise sequential assembly of boronic ester precursors on diol resin, seamlessly integrating copper-mediated radioiododeboronation and azide-alkyne cycloaddition. This approach yields ra...
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