Results 71 to 80 of about 46,339 (188)

Simultaneous Determination of Twenty-Nine Monocyclic Nitrogen-Containing Heterocyclic Compounds in Particulate Matters of Mainstream Cigarette Smoke by Gas Chromatography-Tandem Mass Spectrometry

Zhipu Xuebao
Nitrogen heterocyclic compounds in tobacco are an important type of alkaline flavor substances in mainstream cigarette smoke. More than 1 600 nitrogen-containing heterocyclic compounds have been identified in tobacco smoke.
Hou-wei JI, Fei-qiong HUI, Shu-chang LIU, Yang ZHAO, Li ZHANG, Fang WANG, Jian-ke WEI, Wei-guo WANG, Fang YIN, Shun-ping XIE, Chong YE   +10 more
doaj   +1 more source

Stenotrophomonas maltophilia: A Gram-Negative Bacterium Useful for Transformations of Flavanone and Chalcone

Molecules, 2017
A group of flavones, isoflavones, flavanones, and chalcones was subjected to small-scale biotransformation studies with the Gram-negative Stenotrophomonas maltophilia KB2 strain in order to evaluate the capability of this strain to transform flavonoid ...
Edyta Kostrzewa-Susłow, Monika Dymarska, Urszula Guzik, Danuta Wojcieszyńska, Tomasz Janeczko   +4 more
doaj   +1 more source

Volatile Additives Engineering: A Trustworthy Morphology Control Strategy in Non‐Fullerene Organic Solar Cells

Advanced Science, EarlyView.
In this review, the classification and development history of the volatile solid and solvent additives are comprehensively summarized, the underlying mechanisms of morphology optimization are discussed, and a summary of volatile additive‐induced improvements in interfacial layer performance is provided.
Jianqiang Qin, Zhiqin Lai, Jiang‐Ling Shi, Zheng Xiao, Yuwei Duan, Zhiping Hu, Juan Du, Qiang Peng   +7 more
wiley   +1 more source

3-Amino-2H-azirine, Moleküle mit vielfältigen Reaktionsmöglichkeiten

CHIMIA, 1979
3-Amino-2H-azirines, cyclic three-membered amidines with an estimated ring strain of about 200 kJ/mole, undergo a variety of reactions. Thereby, each of the azirine bonds can be broken: Thermolysis leads to the rupture of the C(2),C(3)-bond, with strong
Heinz Heimgartner
doaj   +1 more source

Liquid‐Responsive Shape‐Memory Nanofiber‐Reinforced Scaffolds for Cartilage Repair

Advanced Science, EarlyView.
A liquid‐responsive shape‐memory, nanofiber‐reinforced QCG scaffold combines conformal defect filling, an aligned architecture that is structurally permissive for endogenous cell infiltration, and sustained KGN release. This integrated design enhances BMSC viability, migratory activity, and chondrogenic differentiation and promotes hyaline cartilage ...
Jiyang Zeng, Wei Li, Yawei Li, Zhiming Tu, Hong Ma, Yuliang Dai, Zhaoling Ma, Tao Yuan, Bing Wang   +8 more
wiley   +1 more source

Modular and Stereoselective Synthesis of Cyclobutane β‐Amino Alcohols

Angewandte Chemie, EarlyView.
Late‐stage functionalization and photoisomerization of 1,2‐azaborine leads to a general strategy for the synthesis of diversely substituted cyclobutane β‐amino alcohols. The relative stereochemistry of the resulting products is unambiguously defined by the stereospecific and stereoselective nature of the photoisomerization‐hydrogenation‐oxidation ...
Xinyu Yang, Tomoya Ozaki, Bo Li, Shih‐Yuan Liu   +3 more
wiley   +2 more sources

Unlocking Li/Mg‐Based Photochemical Nitration Platforms for Anticancer Drug Discovery

Advanced Science, EarlyView.
Two low‐toxicity light main‐group metal photochemical systems based on lithium and magnesium are constructed for selective C(sp2)‐H (di)nitration of anilines. The obtained dinitrated products exhibit anti‐HCC (hepatocellular carcinoma) and anti‐KYSE30 cell activities, holding promise as novel antitumor candidates.
Qian Wan, Jiali Zhu, Shanshuo Liu, Luchuan Ou, Huizhen Wang, Yu Lan, Zhou Dong, Yihang Bai, Wei Yang, Shihan Liu, Yan Qiao, Shi‐Jun Li, Zhigang Ren, Linbin Niu   +13 more
wiley   +1 more source

Aromatic Pummerer‐Promoted Stereospecific Cross‐Coupling of Thiazoles With Boronic Esters

Angewandte Chemie, EarlyView.
A lithiation–borylation–aromatic Pummerer (LiBAP) strategy enables stereospecific, C5‐selective C(sp2)–C(sp3) cross‐coupling of thiazoles with boronic esters. By using exocyclic sulfoxide activation to overcome the low nucleophilicity that frustrates SEAr‐type coupling, the method delivers enantioenriched alkylated thiazoles bearing a versatile C2 ...
Mark John P. Mandigma, Julien Lefranc, Louise Eagling, Jasper L. Tyler, Varinder K. Aggarwal   +4 more
wiley   +2 more sources

Supramolecular Chiral Assemblies from Benzoselenadiazole‐Alanine‐Acylhydrazone Conjugates Enable Cardioprotection

Advanced Science, EarlyView.
The C3‐symmetric conjugate TASe, which integrates benzoselenadiazole, alanine, and acylhydrazone modules, self‐assembles into a chalcogen‐/hydrogen‐bonded porous framework in the solid state and uniform chiral nanospheres in aqueous media. These assemblies protect cardiomyocytes from doxorubicin‐induced oxidative injury by scavenging intracellular ...
Jinkui Teng, Renjing Yang, Yu Du, Jingzhong Duan, Yiming Xu, Zhihua He, Guanghui Wang, Wenjing Tian, Aijie Liu, Haifeng Chen, Yun‐Bao Jiang, Xiaosheng Yan   +11 more
wiley   +1 more source

1‐Azabicyclo[1.1.0]butanes (ABBs) on the Map: Mechanistic Pathways for Catalytic Ring Opening and Functionalizations

Angewandte Chemie, EarlyView.
Catalytic strain‐release ring opening and functionalizations of 1‐azabicyclo[1.1.0]butanes (ABBs) represent a promising strategy for accessing diverse azetidine products. These transformations proceed via polar pathways, radical pathways, and hybrid mechanisms that combine both.
James Shao‐Jiun Yang, Hsuan‐Hung Liao   +1 more
wiley   +2 more sources