Dibenzo[de,g]quinolines 5were formed by the palladium-catalysed heteroannulation of disubstituted alkynes and 1-iodo-10-(dimethylamino)phenanthrene (3c). Symmetric alkynes led to high levels of regioselectivity. These reactions constitute a new synthesis of the B-ring system of aporphine heterocycles.
二苯并[de,g]喹啉5由钯催化的双取代炔烃和1-碘-10-(二甲氨基)菲(3c)的杂环化形成。对称炔烃导致高水平的区域选择性。这些反应构成了阿朴啡杂环 B 环系统的新合成。
Different Behavior of Nitrenes and Carbenes on Photolysis and Thermolysis: Formation of Azirine, Ylidic Cumulene, and Cyclic Ketenimine and the Rearrangement of 6-Phenanthridylcarbene to 9-Phenanthrylnitrene
Ar matrixisolated 8 at λ = 308 or 313 nm generates at first the azirine 26, rapidly followed by the ylidic cumulene 27. The latter reverts to azirine 26 at λ > 405 nm, and the azirine reverts to the ylidic cumulene at 313 nm. Nitrene 9 is observed by ESR spectroscopy following FVT of either azide 8, tetrazole 18, or triazole 19 with Ar matrix isolation of the products. Nitrene 9 and carbene 21 are
作者:Jun Ohata、Farrukh Vohidov、Amirhossein Aliyan、Kewei Huang、Angel A. Martí、Zachary T. Ball
DOI:10.1039/c5cc06099k
日期:——
We describe a modular synthesis of iridium complexes that exhibit luminogenic behavior in biorthogonal conjugation reactions for cellular imaging applications.
我们描述了一种模块化合成方法,可以制备出在细胞成像应用中表现出发光行为的铱配合物。
Weitzberg, Moshe; Aizenshtat, Zeev; Blum, Jochanan, Journal of Heterocyclic Chemistry, 1985, vol. 22, p. 865 - 868