- PRODUCTION METHOD FOR 1,2,3,5,6-PENTATHIEPANE
-
The present invention enables provision of a production method for 1,2,3,5,6-pentathiepane, the method comprising, in the following order, step A for reacting a trithiocarbonate, sulfur, and a methane dihalide together using a phase-transfer catalyst in a multilayer system having a water layer and an organic layer, step B for separating the water layer from the organic layer, and step C for stopping the reaction using an acid.
- -
-
Paragraph 0053; 0055
(2021/01/25)
-
- Blue light absorbing compound
-
PROBLEM TO BE SOLVED: To provide a blue light absorbing compound having a high effect of blocking harmful blue light of 380-500 nm. SOLUTION: A blue light absorbing compound has one or more trichiocarbonate groups in the molecule represented by formula (1), such as ethylene trithiocarbonate, dibenzyl trithiocarbonate. In the compound, thiocarbonate may form a saturated/unsaturated heterocycle. There is also provided use of a composition and a molding containing the compound. SELECTED DRAWING: None COPYRIGHT: (C)2019,JPOandINPIT
- -
-
Paragraph 0160
(2019/01/04)
-
- Fabrication and operation of monolayer mott FET at room temperature
-
Self-assembled monolayer FET based on a TTF derivative is described (FET = field-effect-transistor, TTF = tetrathiafulvalene). The molecule is anchored on an alumina dielectric layer through covalent bonding of a phosphonic acid linker. A p-type monolayer FET device is achieved and subsequent chemical doping of this monolayer with F4TCNQ dopants results in an ambipolar device. (F4TCNQ = 2,3,5,6-Tetrafluoro- 7,7,8,8-tetracyanoquinodimethane) Several strange behaviors including a gate voltage shift upon doping seem to be consistent with organic monolayer Mott FET. Finally, temperature dependence of the FET performance, which also fit the anticipated Mott FET behavior, is discussed.
- Yang, Fan,Suda, Masayuki,Yamamoto, Hiroshi M.
-
supporting information
p. 1259 - 1266
(2017/11/24)
-
- Well-defined second-order nonlinear optical polymers by controlled radical polymerization, via multifunctional macromolecular chain transfer agent: Design, synthesis, and characterizations
-
To address the issue of the aggregation in second-order nonlinear optical (NLO) polymers we developed an approach based on the synthesis of a multifunctional macromolecular chain transfer agent. The controlled monomer insertion polymerization into the main chain by a 'reversible addition-fragmentation chain transfer' (RAFT) mechanism allows the spatial arrangement of the NLO chromophores along the polymeric chain in order to obtain sequence-ordered polymers. In a first step, a novel trithiocarbonate based macroinitiator containing the disperse red 19 (DR19) units in the main chain was synthesized by polycondensation; in a second step, this polymeric precursor was applied to the synthesis of a sequentially ordered polymer by controlled insertion radical polymerization of styrene. Size exclusion chromatography (SEC), nuclear magnetic resonance (NMR) data revealed that, (i) for the first time, polystyrenes (PS) bearing DR19 dyes covalently bounded were obtained, and (ii) both the insertion reaction and the length of the polystyrene segments were accurately controlled. Whatever the incorporated dye amount, all the copolymers were soluble in common solvents. Second-order optical nonlinearity in corona-poled thin films was evaluated, and second harmonic coefficients up to 80 pm/V were determined for loading ratio lower than 10 wt-% (DR19/PS). This approach opens up opportunities for the incorporation of more efficient chromophores even in apolar matrices.
- Roy, Anne-Lise,Bui, Chong,Rau, Ileana,Kajzar, Fran?ois,Charleux, Bernadette,Save, Maud,Kreher, David,Attias, André-Jean
-
p. 782 - 787
(2014/02/14)
-
- Simple preparation of N-protected chiral-amino alkyl thiols from corresponding iodides employing sodium trithiocarbonate
-
A simple protocol for the preparation of N-protected amino alkyl thiols is reported that employs a reaction of sodium trithiocarbonate (Na 2CS3) with N-protected amino alkyl iodides. Na 2CS3 is easy to prepare and the protocol circumvents the use of strong bases and multiple steps. All the thiol compounds made were obtained as enantiopure samples and were characterized employing NMR and mass spectrometry.
- Madhu, Chilakapati,Hemantha, H. P.,Vishwanatha, T. M.,Sureshbabu, V. V.
-
p. 228 - 235,8
(2020/09/02)
-
- Dithiafulvenyl unit as a new donor for high-efficiency dye-sensitized solar cells: Synthesis and demonstration of a family of metal-free organic sensitizers
-
This work identifies the dithiafulvenyl unit as an excellent electron donor for constructing D-π-A-type metal-free organic sensitizers of dye-sensitized solar cells (DSCs). Synthesized and tested are three sensitizers all with this donor and a cyanoacrylic acid acceptor but differing in the phenyl (DTF-C1), biphenyl (DTF-C2), and phenyl-thiopheneyl-phenyl π-bridges (DTF-C3). Devices based on these dyes exhibit a dramatically improved performance with the increasing π-bridge length, culminating with DTF-C3 in η = 8.29% under standard global AM 1.5 illumination.
- Guo, Kunpeng,Yan, Keyou,Lu, Xiaoqing,Qiu, Yongcai,Liu, Zhike,Sun, Jianwei,Yan, Feng,Guo, Wenyue,Yang, Shihe
-
supporting information; experimental part
p. 2214 - 2217
(2012/06/30)
-
- The crystal structure of thallium(I) trithiocarbonate, Tl 2CS3
-
Thallium trithiocarbonate, T12CS3, was prepared by the reaction of Na2CS3 with T1NO3 in aqueous solution. T12CS3 has a low solubility and is precipitated as an orange powder. DSC
- Beck, Johannes,Benz, Sebastian
-
p. 962 - 965
(2009/10/16)
-
- TOUGHENED VINYL ESTER RESINS
-
A vinyl ester resin is derived from the reaction of an unsaturated acid with an epoxy terminated polymer made from a dithio or a trithio initiator, and optionally from an epoxy resin. The vinyl ester resin can be blended with a miscible toughener and a diluent to provide a time stable system and subsequently crosslink to provide a composition with improved toughening properties.
- -
-
Page/Page column 9
(2010/02/13)
-
- 1-(Mercaptomethyl)benzotriazole: Preparation, Reactivity and Synthetic Utility
-
A convenient synthesis is reported for 1-(mercaptomethyl)benzotriazole (89%) and its reactivity is examined.
- Katritzky, Alan R.,Ghiviriga, Ion,Oniciu, Daniela C.,Soti, Ferenc
-
p. 1927 - 1934
(2007/10/03)
-
- CONVERSION OF CYCLIC TRITHIOCARBONATES TO THIOACETALS, INCLUDING 1,3-DITHIANE, BY REDUCTION WITH DIISOBUTYLALUMINIUM HYDRIDE (DIBAL)
-
Cyclic trithiocarbonates can be desulfurized with diisobutylaluminium hydride (DIBAL) to form the corresponding thioacetals.This new synthetic pathway was exploited for the preparation of several Umpolung reagents, including 1,3-dithiane.An efficient isolation of sodium trithocarbonate is described.
- Jordis, Ulrich,Rudolf, Manfred
-
p. 279 - 284
(2007/10/02)
-