Oxidation of [3]naphthylenes to cations and dications converts local paratropicity into global diatropicity [0.03%]
[3]萘烯的氧化产物阳离子和双
Abel Cárdenas,Zexin Jin,Yong Ni et al.
Abel Cárdenas et al.
Oxidized states of polycyclic aromatic hydrocarbons are of importance as they represent charged conductive species in organic semiconductor substrates. In this work, we investigated the properties of radical cations and dications of linear ...
Synthesis of disulfides and 3-sulfenylchromones from sodium sulfinates catalyzed by TBAI [0.03%]
碘化四丁基铵催化亚磺酸钠合成二硫化合物及3-硫烯基色酮类化合物
Zhenlei Zhang,Ying Wang,Xingxing Pan et al.
Zhenlei Zhang et al.
A new synthetic method for disulfides and 3-sulfenylchromones is reported. This innovative approach is based on the tetrabutylammonium iodide (TBAI)/H2SO4 reduction system using sodium sulfinate as key component, thus eliminating the need f...
Three-component reactions of conjugated dienes, CH acids and formaldehyde under diffusion mixing conditions [0.03%]
扩散混合条件下共轭二烯、羧酸和甲醛的三组分反应
Dmitry E Shybanov,Maxim E Kukushkin,Eugene V Babaev et al.
Dmitry E Shybanov et al.
A diffusion mixing technique with a volatile reagent was successfully used to generate crotonic condensation adducts of active methylene compounds and formaldehyde at room temperature in the absence of strong acids and bases. The formed add...
Synthesis and characterizations of highly luminescent 5-isopropoxybenzo[ rst]pentaphene [0.03%]
高荧光5-异丙氧基苯并[rst]戊菲的合成与表征
Islam S Marae,Jingyun Tan,Rengo Yoshioka et al.
Islam S Marae et al.
A benzo[rst]pentaphene (BPP) substituted by an isopropoxy group (BPP-OiPr) was synthesized in a facile manner. Its photophysical properties were investigated by UV-vis absorption and fluorescence spectroscopy in compassion to pristine BPP a...
Lucas Fortier,Corentin Lefebvre,Norbert Hoffmann
Lucas Fortier
Red-light-activated photocatalysis has become a powerful approach for achieving sustainable chemical transformations, combining high efficiency with energy-saving, mild conditions. By harnessing the deeper penetration and selectivity of red...
Visible-light-promoted radical cyclisation of unactivated alkenes in benzimidazoles: synthesis of difluoromethyl- and aryldifluoromethyl-substituted polycyclic imidazoles [0.03%]
可见光促进的苯并咪唑内烯烃环化反应：二氟甲基和芳基二氟甲基多环取代咪唑化合物的合成
Yujun Pang,Jinglan Yan,Nawaf Al-Maharik et al.
Yujun Pang et al.
An efficient and eco-friendly approach for synthesizing difluoromethyl- and aryldifluoromethyl-substituted polycyclic imidazoles was established via a visible-light-promoted radical cyclization reaction. This method employed the readily acc...
Effect of substitution position of aryl groups on the thermal back reactivity of aza-diarylethene photoswitches and prediction by density functional theory [0.03%]
基于密度泛函理论预测的aza- Diarylethene光开关芳环取代位置对其热反向反应性影响的研究
Misato Suganuma,Daichi Kitagawa,Shota Hamatani et al.
Misato Suganuma et al.
Aza-diarylethene has been developed as a new family of photochromic compounds. This study explores the photochromic properties and thermal back reactivities of various aza-diarylethene regioisomers (N1-N4 and I1-I4) in n-hexane. These molec...
Streamlined modular synthesis of saframycin substructure via copper-catalyzed three-component assembly and gold-promoted 6- endo cyclization [0.03%]
铜催化三组分组装及金促进的6-endo环化反应合成沙拉霉素核心骨架的模块化方法学研究
Asahi Kanno,Ryo Tanifuji,Satoshi Yoshida et al.
Asahi Kanno et al.
The integration of copper(I)-catalyzed three-component coupling with gold(I)-mediated 6-endo cyclization streamlines the rapid and modular assembly of the substructure of bis-tetrahydroisoquinoline (THIQ) alkaloids. The design of the key sy...
Heteroannulations of cyanoacetamide-based MCR scaffolds utilizing formamide [0.03%]
基于氰基乙酸胺的MCR骨架的异芳环化利用甲酰胺
Marios Zingiridis,Danae Papachristodoulou,Despoina Menegaki et al.
Marios Zingiridis et al.
C1 chemistry has a central role in the efficient utilization of single-carbon molecules, contributing significantly to sustainability, innovation and economic growth across various sectors. In this study, we present an efficient and rapid m...
Dioxazolones as electrophilic amide sources in copper-catalyzed and -mediated transformations [0.03%]
铜催化和介导的反应中的二氧杂唑酮作为亲电子酰胺源
Seungmin Lee,Minsuk Kim,Hyewon Han et al.
Seungmin Lee et al.
Over the past decade, dioxazolones have been widely used as N-acylamide sources in amidation processes of challenging substrates, typically employing precious transition metals. However, these catalytic systems often present several challen...