Results 21 to 30 of about 22,715 (251)

Synthesis, Complexation, and Coordination Oligomerization of 1,8-Pyrazine-Capped 5,12-Dioxocyclams

, 2016
(Methyl)(methoxy)-5,12-dioxocyclam 1 was alkylated on the secondary amines (capped) with 2,6-bis(bromomethyl)pyrazine. The resulting macrocycle was complexed to copper(II) to produce a five-coordinate complex 5a which was fully characterized by a range ...
Michael J. Sundermann (2968788), Louis S. Hegedus (2522299), Peter K. Dorhout (1680940)   +2 more
core   +2 more sources

Pyrazine analogues are active components of wolf urine that induce avoidance and fear-related behaviors in deer

Frontiers in Behavioral Neuroscience, 2014
Our previous studies indicated that a cocktail of pyrazine analogues, identified in wolf urine, induced avoidance and fear behaviors in mice. The effects of the pyrazine cocktail on Hokkaido deer (Cervus nippon yesoensis) were investigated in field ...
Kazumi eOsada, Sadaharu eMiyazono, Makoto eKashiwayanagi   +2 more
doaj   +1 more source

Research Progress of the Detection, Source, Aroma and Functional Activity of Pyrazine Compounds in High Temperature Daqu Baijiu

Shipin gongye ke-ji, 2023
Microcompounds, the key factors for the difference of flavor and quality in Baijiu, are one of the hot topics in the research field of Baijiu. Pyrazine compounds are a kind of microcompounds which contribute to the formation of the flavor in Baijiu, and ...
Yanmei ZHU, Hengye CHEN, Gaoqiong DENG, Haiyan FU   +3 more
doaj   +1 more source

Pyrazine-Based Covalent Organic Frameworks for Effective Iodine and Carbon Dioxide Capture

, 2023
Covalent organic frameworks (COFs) possess good porosity, uniform channels, and tunable skeletons, as well as excellent stability, which are well-suited for gas adsorption.
Yamin He (17305630), Jie Zhao (49409), Ru-Yi Zou (2648884), Yi-Fan Liu (2901572), Xinyu Shen (3768658), Lan Yang (457660)   +5 more
core   +1 more source

Poly[[μ4-3,4,8,10,11,13-hexahydro-1H,6H-bis([1,4]dithiocino)[6,7-b:6′,7′-e]pyrazine]di-μ-iodido-dicopper(I)]: a two-dimensional copper(I) coordination polymer

IUCrData, 2020
The reaction of ligand 3,4,8,10,11,13-hexahydro-1H,6H-bis([1,4]dithiocino)[6,7-b:6′,7′-e]pyrazine (L) with CuI led to the formation of a two-dimensional coordination polymer, incorporating a [Cu2I2] motif.
Tokouré Assoumatine, Helen Stoeckli-Evans   +1 more
doaj   +1 more source

Hidden ordered structure in the archetypical Fe(pyrazine)[Pt(CN)4 ] spin-crossover porous coordination compound [PDF]

, 2022
Despite the fact that Fe(pyrazine)[MII (CN)4] (where MII is a metal in open square-planar configuration, namely Pt, Pd, Ni) is one of the most thoroughly studied families of spin-crossover compounds, its actual structure has remained imprecisely known up
Angel, Fernandez Blanco, Lucia, Piñeiro-López, Roberta, Poloni, Lorenzo A., Mariano, Jose Alberto, Rodríguez-Velamazán, Jose Antonio, Real, Jose, Sanchez Costa   +6 more
core   +2 more sources

Aquadioxidobis(pentane-2,4-dionato)uranium(VI) pyrazine solvate

Acta Crystallographica Section E, 2008
The asymmetric unit of the title compound, [U(C5H7O2)2O2(H2O)]·C4H4N2, contains one [UO2(acac)2(H2O)] (where acac is acetylacetonate) and two half-molecules of pyrazine.
Takafumi Kitazawa, Takeshi Kawasaki
doaj   +1 more source

Bifunctional Pd sites on Pd4/Co3O4 nanowires for high selectivity of pyrazine electrocatalytic hydrogenation with water as the hydrogen source [PDF]

RSC Applied Interfaces
Liquid organic hydrogen carriers (LOHCs) are considered highly promising materials for hydrogen storage. However, hydrogenation and dehydrogenation of LOHCs often require harsh reaction conditions.
Fangcheng Qiu, Siyi Chen, Xin Zheng, Hanyu Li, Bowen Chen, Shaowen Tan, Xue Han, Shengping Wang   +7 more
doaj   +1 more source

Pyrazine Carboxylic Acid Derivatives of Dichlorobis(Cyclopentadienyl)titanium(IV)

Orbital: The Electronic Journal of Chemistry, 2012
Reactions of dichlorobis(cyclopentadienyl)titanium(IV) with pyrazine carboxylic acids viz. 2-pyrazine carboxylic acid (2-PzCH), 5-methyl-2-pyrazine carboxylic acid (MPzCH) and 2,3-pyrazine dicarboxylic acid (2,3-PzDCH2) were carried out in different ...
Satish Chandra Dixit, Rohit Kumar Singh
doaj   +1 more source

Novel Triterpenoid Alkaloids With Their Potential Cytotoxic Activity From the Roots of Siraitia grosvenorii

Frontiers in Chemistry, 2022
Four novel triterpenoid alkaloids, siragrosvenins A–D (1–4), and two new cucurbitane-type triterpenoids, siragrosvenins E–F (5, 6), together with eight known analogs (7−14), were isolated from the roots of Siraitia grosvenorii.
Huijuan Wang, Guoxu Ma, Huaxiang Wang, Lingyu Li, Aijun Dong, Huiping Liu, Xiaoshuang Huo, Jianyong Si, Junchi Wang   +8 more
doaj   +1 more source