Protein interactions of dirhodium tetraacetate: a structural study

2020 ◽  
Vol 49 (8) ◽  
pp. 2412-2416 ◽  
Author(s):  
Giarita Ferraro ◽  
Alessandro Pratesi ◽  
Luigi Messori ◽  
Antonello Merlino
Keyword(s):  
Mass Spectrometry ◽  
High Resolution ◽  
Protein Interactions ◽  
High Resolution Mass Spectrometry ◽  
Rnase A ◽  
Pancreatic Ribonuclease ◽  
X Ray ◽  
X Ray Crystallography ◽  
Model Protein ◽  
Resolution Mass

The interactions between the cytotoxic paddlewheel dirhodium complex [Rh2(μ-O2CCH3)4] and the model protein bovine pancreatic ribonuclease (RNase A) were investigated by high-resolution mass spectrometry and X-ray crystallography.

Mapping the protein-binding sites for iridium(iii)-based CO-releasing molecules

2016 ◽  
Vol 45 (30) ◽  
pp. 12206-12214 ◽  
Author(s):  
Marco Caterino ◽  
Ariel A. Petruk ◽  
Alessandro Vergara ◽  
Giarita Ferraro ◽  
Daniela Marasco ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Protein Binding ◽  
Binding Sites ◽  
Raman Microspectroscopy ◽  
Rnase A ◽  
Protein Binding Sites ◽  
X Ray ◽  
X Ray Crystallography ◽  
Model Protein ◽  
Circular Dichroïsm

Mass spectrometry, Raman microspectroscopy, circular dichroism and X-ray crystallography have been used to investigate the reaction of CO-releasing molecule Cs2IrCl5CO with the model protein RNase A.

scholarly journals Synthesis of spiro[benzo[4,5]imidazo[2,1-b][1,3]thiazole-2,3-thiolane]s via sulfa-Michael/aldol cascade reactions

2019 ◽  
Vol 43 (1-2) ◽  
pp. 63-66 ◽  
Author(s):  
Jiaying Lei ◽  
Xinliang Fu ◽  
Yulin Huang ◽  
Xiaofang Li
Keyword(s):  
Mass Spectrometry ◽  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
High Resolution ◽  
High Resolution Mass Spectrometry ◽  
Cascade Reactions ◽  
Cascade Reaction ◽  
Crystallographic Analysis ◽  
X Ray ◽  
Resolution Mass

The sulfa-Michael/aldol cascade reaction of ( Z)-2-arylmethylidene-benzo[4,5]imidazo[2,1- b]thiazol-3(2H)-ones and 1,4-dithiane-2,5-diol afforded novel 2-aryl-4-hydroxy-spiro[benzo[4,5]imidazo[2,1- b][1,3]thiazole-2,3-thiolan]-3-ones in moderate yields. The structures of all the products were characterized thoroughly by nuclear magnetic resonance, infrared and high-resolution mass spectrometry together with X-ray crystallographic analysis.

scholarly journals Synthesis and Crystal Structure of Unexpected (1S,4R,5R,6S)-4-Cyano-2,2,6-trimethyl-3-azabicyclo[3.3.1]nonan-6-yl Acetate

2017 ◽  
Vol 70 (12) ◽  
pp. 1269
Author(s):  
Steven Gareth Williams ◽  
Mohan Bhadbhade ◽  
Roger Bishop ◽  
Alison Thavary Ung
Keyword(s):  
Crystal Structure ◽  
Mass Spectrometry ◽  
High Resolution Mass Spectrometry ◽  
Unit Cell Parameters ◽  
Synthesis And Crystal Structure ◽  
X Ray ◽  
Cell Parameters ◽  
X Ray Crystallography ◽  
Ir And Nmr Spectroscopy ◽  
Resolution Mass

The reaction of (–)-β-pinene with KCN under a mild bridged Ritter reaction gave (1S,5R,6S)-2,2,6-trimethyl-3-aza-bicyclo[3.3.1]non-3-en-6-yl acetate that subsequently reacted to provide an unexpected (1S,4R,5R,6S)-4-cyano-2,2,6-trimethyl-3-azabicyclo[3.3.1]nonane-6-yl acetate. The structure of the compound was determined by high-resolution mass spectrometry, and IR and NMR spectroscopy and confirmed by single crystal X-ray crystallography. The compound crystallises in the monoclinic P21 space group, with unit cell parameters a 8.6120 (17), b 7.4570 (15), c 11.189 (2) Å, and β 110.16 (3)°.

scholarly journals One-pot synthesis and the structure study of a new indoline spiropyran with cationic substituent

2019 ◽  
Vol 488 (5) ◽  
pp. 498-503
Author(s):  
A. D. Pugachev ◽  
A. S. Kozlenko ◽  
M. B. Lukyanova ◽  
B. S. Lukyanov ◽  
V. V. Tkachev ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
High Resolution ◽  
Single Crystals ◽  
High Resolution Mass Spectrometry ◽  
Structure Study ◽  
One Pot ◽  
X Ray ◽  
One Pot Synthesis ◽  
High Resolution Mass ◽  
Resolution Mass

One-pot synthesis and the structure study of a new salt spiropyran of indoline series containing 2H-chromenic vinyl-3H-indolium fragment as a substituent at the position 8 are described. The structure was confirmed by the method of NMR 1H and 13C spectroscopy, IR and high-resolution mass spectrometry. The single crystals of the compound were investigated by X-ray analysis. The structure was compared with the previously known isostructural analogue [10].

Synthesis of 1,2,3-triazole-substituted 6,7-dihydroindolizin-8(5H)-one derivatives mediated by Selectfluor

2019 ◽  
Vol 43 (5-6) ◽  
pp. 179-183
Author(s):  
Yulin Huang ◽  
Jiaying Lei ◽  
Xinliang Fu ◽  
Wenlin Xie ◽  
Xiaofang Li
Keyword(s):  
Mass Spectrometry ◽  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
High Resolution ◽  
High Resolution Mass Spectrometry ◽  
Crystallographic Analysis ◽  
X Ray ◽  
High Resolution Mass ◽  
Moderate Yield ◽  
Resolution Mass

The 1,2,3-triazole and 1 H-1,2,3-benzotriazole-substituted 6,7-dihydroindolizin-8(5 H)-one derivatives were synthesized by the reaction of ( E)-7-(arylmethylidene)-6,7-dihydroindolizin-8(5 H)-ones with 1,2,3-triazole and 1 H-1,2,3-benzotriazole in the presence of Selectfluor in moderate yield. The structures of all the products were characterized thoroughly by nuclear magnetic resonance, infrared, and high-resolution mass spectrometry together with X-ray crystallographic analysis.

Fluorescence staining of salicylaldehyde azine, and applications in the determination of potassium tert-butoxide

RSC Advances ◽  
2016 ◽  
Vol 6 (36) ◽  
pp. 30636-30641 ◽  
Author(s):  
Jinlai Yang ◽  
Jian Rui ◽  
Xu Xu ◽  
Yiqin Yang ◽  
Jun Su ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
High Resolution ◽  
High Resolution Mass Spectrometry ◽  
Fluorescence Staining ◽  
Single Crystal Diffraction ◽  
X Ray ◽  
Resolution Mass

Salicylaldehyde azine (1), with an aggregation-induced emission (AIE) function, was synthesized from salicylaldehyde and characterized by nuclear magnetic resonance, high resolution mass spectrometry, and X-ray single crystal diffraction.

scholarly journals 4-(7-Bromobenzo[d][1,2,3]thiadiazol-4-yl)morpholine

Molbank ◽  
10.3390/m1202 ◽  
2021 ◽  
Vol 2021 (2) ◽  
pp. M1202
Author(s):  
Nikita Gudim ◽  
Ekaterina Knyazeva ◽  
Natalia Obruchnikova ◽  
Oleg Rakitin ◽  
Vadim Popov
Keyword(s):  
Mass Spectrometry ◽  
High Resolution ◽  
Ir Spectroscopy ◽  
Elemental Analysis ◽  
13C Nmr ◽  
High Resolution Mass Spectrometry ◽  
Nitrogen Heterocycles ◽  
X Ray ◽  
Photovoltaic Materials ◽  
Resolution Mass

Dibromoderivatives of benzofused chalcogen-nitrogen heterocycles are important precursors in the synthesis of various photovoltaic materials. 4,7-Dibromobenzo[d][1,2,3]thiadiazole is a practically unexplored compound in this series. In this communication, it was shown that the nucleophilic substitution of 4,7-dibromobenzo[d][1,2,3]thiadiazole with morpholine gave selectively 4-substituted product—4-(7-bromobenzo[d][1,2,3]thiadiazol-4-yl)morpholine. The structure of the newly synthesized compound was established by means of elemental analysis, high resolution mass-spectrometry, 1H, 13C NMR, and IR spectroscopy, mass-spectrometry, and X-ray analysis.

scholarly journals Synthesis of Cholestan -3-One Derivatives Possessing a C-2 Spiro-Oxindole Substituent

2018 ◽  
Vol 42 (1) ◽  
pp. 15-19 ◽  
Author(s):  
Hongwen Tao ◽  
Yinan Yuan ◽  
Jian Chen ◽  
Xianyong Yu ◽  
Pinggui Yi
Keyword(s):  
Mass Spectrometry ◽  
Data Analysis ◽  
High Resolution ◽  
High Resolution Mass Spectrometry ◽  
Cycloaddition Reaction ◽  
Aromatic Aldehydes ◽  
Dipolar Cycloaddition ◽  
Schmidt Reaction ◽  
X Ray ◽  
Resolution Mass

A series of C-2 cholestan-3-one spiro-oxindole derivatives were prepared by the 1:3 dipolar cycloaddition reaction between the cholestan-3-one substituted by a C-2 arylidene and the azomethine ylid derived from isatin and sarcosine. The dipolarophiles were efficiently obtained by a Claisen-Schmidt reaction of cholestan-3-one and aromatic aldehydes. The structures of the products were established by a combination of NMR, high-resolution mass spectrometry (HRMS) and X-ray data analysis.

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