The catalyst-free oxidative cleavage of (Z)-triaryl-substituted alkenes bearing a pyridyl motif in ambient air under the irradiation of blue LEDs has been developed.
在蓝色LED灯照射下,无需催化剂,实现了环境空气中带有吡啶基团的(Z)-三芳基取代烯烃的氧化断裂。
Heterocyclization of Enediynes Promoted by Sodium Azide: A Case of Ambiguity of X-ray Data and Structure Revision
作者:Anna V. Gulevskaya、Alexander S. Tyaglivy、Alexander F. Pozharskii、Julia I. Nelina-Nemtseva、Dmitry V. Steglenko
DOI:10.1021/ol500125j
日期:2014.3.21
It has been shown that contrary to the literature data the tandem cyclization of (Z)-1-aryl-3-hexen-1,5-diynes promoted by sodium azide results in the formation of the corresponding [1,2,3]triazolo[1,5-a]pyridines, not 1H-benzotriazole derivatives. Apparently, incorrect structure elucidation made by previous investigators originates from misinterpretation of X-ray data. A number of new transformations
已经表明,与文献数据相反,叠氮化钠促进的(Z)-1-芳基-3-己烯-1,5-二炔串联环化导致形成相应的[1,2,3]三唑[1,5- a ]吡啶,而不是1 H-苯并三唑衍生物。显然,先前研究人员做出的不正确的结构解释是由于对X射线数据的错误解释造成的。讨论了这种类型的许多新转化以及X射线和NMR实验。
10.1021/acs.joc.4c00627
作者:Edirin, Orume J.、Carrick, Jesse D.
DOI:10.1021/acs.joc.4c00627
日期:——
synthon for drug discovery, C–Hfunctionalization, and complexant design for minor actinide separations. While contemporary work has demonstrated the capacity to leverage downstream functional group interconversion of the triazolopyridine, a broadly applicable method tolerant of diverse heteroaryl constructs and pendant functionality to obtain triazoloheteroarenes remains under reported. In this work,
Palladium-Catalyzed Divergent Arylation with Triazolopyridines: One-Pot Synthesis of 6-Aryl-2-α-styrylpyridines
作者:Youngtaek Moon、Soonhyung Kwon、Dahye Kang、Honggu Im、Sungwoo Hong
DOI:10.1002/adsc.201500967
日期:2016.3.17
We have developed a new strategy for palladium‐catalyzed arylation reactions with triazolopyridines, wherein two different chemical transformations (C‐3 vs. C‐7) are observed by differentiating the substrates using different bases. The reactive palladium carbenoids were directly generated from triazolopyridines and underwent denitrogenative arylations with aryl bromides. Intriguingly, when potassium