A fluorescent probe for detection of Hg²⁺ ions constructed by tetramethyl cucurbit[6]uril and 1,2-bis(4-pyridyl)ethene

• Xiaoqian Chen,
• Naqin Yang,
• Yue Ma,
• Xinan Yang and
• Peihua Ma

Beilstein J. Org. Chem. 2023, 19, 864–872, doi:10.3762/bjoc.19.63

• structure of the inclusion complex formed by TMeQ[6] and G was obtained using X-ray single-crystal diffraction analysis. The crystal data and parameters are shown in Table 2. The single-crystal structure determination shows that the inclusion complex crystallizes in the triclinic crystal system, with the

Synthesis and characterization of π–extended “earring” subporphyrins

• Haiyan Guan,
• Mingbo Zhou,
• Bangshao Yin,
• Ling Xu and
• Jianxin Song

Beilstein J. Org. Chem. 2018, 14, 1956–1960, doi:10.3762/bjoc.14.170

• to the “ear”. Both the structure of “earring” subporphyrin and that of its Pd complex were elucidated by X-ray single crystal diffraction analysis. In addition, their UV–vis/NIR spectra revealed that the absorption region is extended to the NIR region and that the absorption of the Pd complex is

Pyrene–nucleobase conjugates: synthesis, oligonucleotide binding and confocal bioimaging studies

• Artur Jabłoński,
• Yannic Fritz,
• Hans-Achim Wagenknecht,
• Rafał Czerwieniec,
• Tytus Bernaś,
• Damian Trzybiński,
• Krzysztof Woźniak and
• Konrad Kowalski

Beilstein J. Org. Chem. 2017, 13, 2521–2534, doi:10.3762/bjoc.13.249

• Supporting Information File 454: 1H NMR spectra, refinement data, and spectra in HeLa cells. Acknowledgements The X-ray single-crystal diffraction analysis was carried out at the Biological and Chemical Research Centre, University of Warsaw, established within the project co-financed by the European Union

Less reactive dipoles of diazodicarbonyl compounds in reaction with cycloaliphatic thioketones – First evidence for the 1,3-oxathiole–thiocarbonyl ylide interconversion

• Valerij A. Nikolaev,
• Alexey V. Ivanov,
• Ludmila L. Rodina and
• Grzegorz Mlostoń

Beilstein J. Org. Chem. 2013, 9, 2751–2761, doi:10.3762/bjoc.9.309

• spectroscopy (Table 1, entry 1). After isolation and crystallization from diethyl ether, the postulated structure of 3a was unambiguously confirmed by X-ray single crystal diffraction analysis (Figure 2). In the reaction of dibenzoyldiazomethane (2b) with thioketone 1a, performed at rt, the yield of oxathiole

One-pot tandem cyclization of enantiopure asymmetric cis-2,5-disubstituted pyrrolidines: Facile access to chiral 10-heteroazatriquinanes

• Ping-An Wang,
• Sheng-Yong Zhang and
• Henri B. Kagan

Beilstein J. Org. Chem. 2013, 9, 265–269, doi:10.3762/bjoc.9.32

• configurations of these new chiral 10-heteroazatriquinanes are confirmed by X-ray single-crystal diffraction analysis. Keywords: cis-2,5-disubstituted pyrrolidine; 10-heteroazatriquinane; tandem cyclization; X-ray single-crystal diffraction analysis; Introduction The azatriquinane derivatives are an important

• to be useless even upon heating under reflux for 18 h under an inert atmosphere, and no desired diamino-alcohols were obtained after workup. However, 4a reacted smoothly with BH3 to give white crystals after chromatographic purification (Scheme 2). The X-ray single-crystal diffraction analysis

• here a facile access to chiral 10-heteroazatriquinanes from enantiopure asymmetric cis-2,5-disubstituted pyrrolidines through one-pot tandem cyclization reactions, and their configurations are confirmed by X-ray single-crystal diffraction analysis. The applications of these novel 10