Zhang, Jie published the artcileSulfur Conversion to Multifunctional Poly(O-thiocarbamate)s through Multicomponent Polymerizations of Sulfur, Diols, and Diisocyanides, Formula: C13H26N2, the publication is Journal of the American Chemical Society (2021), 143(10), 3944-3950, database is CAplus and MEDLINE.
Sulfur, which is generated from the waste byproducts in the oil and gas refinery industry, is an abundant, cheap, stable, and readily available source in the world. However, the utilization of excessive amounts of sulfur is mostly limited, and developing novel methods for sulfur conversion is still a global concern. Here, the authors report a facile one-step conversion from elemental sulfur to functional poly(O-thiocarbamate)s through a multicomponent polymerization of sulfur, diols, and diisocyanides, which possesses a series of advantages such as mild condition (55°C), short reaction time (1 h), 100% atom economy, and without any transition metal in the catalyst system. Seven poly(O-thiocarbamate)s are constructed with high yields (up to 95%), large mol. weight (up to 53100 of Mw), good solubility in organic solvents, and completely new polymer structures. The poly(O-thiocarbamate)s possess a high refractive index above 1.7 from 600 to 1700 nm by adjusting the sulfur content. By incorporating tetraphenylethene (TPE) moieties into the polymer structure, the poly(O-thiocarbamate)s can also be designed as fluorescent sensors to detect the harmful metal cation Hg2+ in a turn-on mode with high sensitivity (LOD = 32 nM) and excellent selectivity (over interference cations of Pb2+, Au3+, Ag+). Different from the previous reports, the exact coordination structure is first identified by single-crystal X-ray diffraction, which revealed a tetracoordinated bonding mode (two sulfur and two chloride) using a model coordination compound
Journal of the American Chemical Society published new progress about 1761-71-3. 1761-71-3 belongs to quinuclidine, auxiliary class Ploymers, name is 4,4-Diaminodicyclohexyl methane, and the molecular formula is C6H12Br2, Formula: C13H26N2.
Referemce:
https://en.wikipedia.org/wiki/Quinuclidine,
Quinuclidine | C7H13N | ChemSpider