Topic
Thiocarbonate
About: Thiocarbonate is a research topic. Over the lifetime, 342 publications have been published within this topic receiving 3741 citations.
Papers published on a yearly basis
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Papers
TL;DR: The preparation of perfectly alternating and regioslective copolymers derived from the copolymerization of carbonyl sulfide and epoxides by metal-free Lewis pair catalysts composed of a Lewis base and a Lewis acid is described.
Abstract: The preparation of perfectly alternating and regioslective copolymers derived from the copolymerization of carbonyl sulfide (COS) and epoxides by metal-free Lewis pair catalysts composed of a Lewis base (amidine, guanidine, or quaternary onium salts) and a Lewis acid (triethyl borane) is described. Colorless and highly transparent copolymers of poly(monothiocarbonate) were successfully obtained with over 99 % tail-to-head content and high molecular weight (up to 92.5 kg mol−1). In most instances, oxygen–sulfur exchange reactions (O/S ERs), which would generate random thiocarbonate and carbonate units, were effectively suppressed. The turnover frequencies (TOF) of these Lewis pair catalyzed processes were as high as 119 h−1 at ambient temperature.
180 citations
TL;DR: The data described here represent the first report of electrochemical behavior of a sulfur-bound terminal thiocarbonate, which acts as the CO2 carrier species, much the same as a carbamate serves as theCO2 carrier for amine-based capture strategies.
Abstract: We describe a new electrochemical cycle that enables capture and release of carbon dioxide. The capture agent is benzylthiolate (RS–), generated electrochemically by reduction of benzyldisulfide (RSSR). Reaction of RS– with CO2 produces a terminal, sulfur-bound monothiocarbonate, RSCO2–, which acts as the CO2 carrier species, much the same as a carbamate serves as the CO2 carrier for amine-based capture strategies. Oxidation of the thiocarbonate releases CO2 and regenerates RSSR. The newly reported S-benzylthiocarbonate (IUPAC name benzylsulfanylformate) is characterized by 1H and 13C NMR, FTIR, and electrochemical analysis. The capture–release cycle is studied in the ionic liquid 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide (BMP TFSI) and dimethylformamide. Quantum chemical calculations give a binding energy of CO2 to benzyl thiolate of −66.3 kJ mol–1, consistent with the experimental observation of formation of a stable CO2 adduct. The data described here represent the first report of...
96 citations
TL;DR: In this paper, a strategy for the synthesis of new chiral (P,S) ligands is described based on the opening of chiral nonracemic episulfides using phosphorus nucleophiles.
84 citations
80 citations
80 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2021 | 9 |
| 2020 | 3 |
| 2019 | 4 |
| 2018 | 4 |
| 2017 | 5 |
| 2016 | 4 |