Imidazole based dual photo/thermal initiators for highly efficient radical polymerization under air with metal-free approach

2021 ◽  
Author(s):  
Jacques Lalevée ◽  
Qiang Ma ◽  
Shaohui Liu ◽  
Marie Le Dot ◽  
haifaa Mokbel ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Radical Polymerization ◽  
Spatial Resolution ◽  
Mild Condition ◽  
Room Temperature ◽  
Inert Atmosphere ◽  
Charge Transfer Complexes ◽  
Metal Free ◽  
Highly Efficient

By virtue of remarkable spatial resolution, a metal-free visible LEDs photopolymerization process, initiated by imidazole based charge transfer complexes at mild condition (room temperature, without inert atmosphere, monomer purification or...

scholarly journals Highly Efficient Synthesis of Hindered 3-Azoindoles via Metal-Free C–H Functionalization of Indoles

Synthesis ◽  
2020 ◽  
Vol 52 (04) ◽  
pp. 574-580
Author(s):  
Nicolas Jacob ◽  
Lucas Guillemard ◽  
Joanna Wencel-Delord
Keyword(s):  
Steric Hindrance ◽  
Room Temperature ◽  
Efficient Synthesis ◽  
Atom Economy ◽  
Photochromic Compounds ◽  
Metal Free ◽  
Highly Efficient ◽  
Simple Protocol ◽  
Potential Applications

Although 3-azoindoles have recently emerged as an appealing family of photoswitch molecules, the synthesis of such compounds has been poorly covered in the literature. Herein a high-yielding and operationally simple protocol is reported allowing the synthesis of 3-azoindoles, featuring important steric hindrance around the azo motif. Remarkably, this C–H coupling is characterized by excellent atom economy and occurs under metal-free conditions, at room temperature, and within few minutes, delivering the expected products in excellent yields (quantitatively in most of the cases). Accordingly, a library of new molecules, with potential applications as photochromic compounds, is prepared.

Graphite oxide: a metal free highly efficient carbocatalyst for the synthesis of 1,5-benzodiazepines under room temperature and solvent free heating conditions

2017 ◽  
Vol 19 (6) ◽  
pp. 1576-1585 ◽  
Author(s):  
Ramen Jamatia ◽  
Ajay Gupta ◽  
Binoyargha Dam ◽  
Mithu Saha ◽  
Amarta Kumar Pal
Keyword(s):  
Graphite Oxide ◽  
Room Temperature ◽  
Solvent Free ◽  
Metal Free ◽  
Highly Efficient

We report a sustainable and metal free carbocatalyst, graphite oxide, for the synthesis of 1,5-benzodiazepines under room temperature and solvent free heating conditions.

Room temperature deintercalation of alkali metal atoms from epitaxial graphene by formation of charge-transfer complexes

2016 ◽  
Vol 109 (8) ◽  
pp. 081603 ◽  
Author(s):  
H.-C. Shin ◽  
S. J. Ahn ◽  
H. W. Kim ◽  
Y. Moon ◽  
K. B. Rai ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Alkali Metal ◽  
Room Temperature ◽  
Epitaxial Graphene ◽  
Charge Transfer Complexes ◽  
Metal Atoms

scholarly journals Investigation of Charge Transfer Complexes Formed between Mirtazapine and Someπ-Acceptors

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Hulya Demirhan ◽  
Mustafa Arslan ◽  
Mustafa Zengin ◽  
Mustafa Kucukislamoglu
Keyword(s):  
Charge Transfer ◽  
Dosage Form ◽  
Room Temperature ◽  
Equilibrium Constants ◽  
Formation Constants ◽  
Electron Acceptors ◽  
Spectral Studies ◽  
Charge Transfer Complexes ◽  
Ir And Nmr Spectroscopy ◽  
Ft Ir

Charge transfer complexes (CTC) of mirtazapine with tetracyanoethylene (TCNE), 2,3-dichloro-5,6-dicyano-p-benzoquinone (DDQ), and tetracyanoquinodimethane (TCNQ) have been studied spectrophotometrically in dichloromethane at room temperature. The stoichiometries of the complexes were found to be 1 : 1 ratio by the Job Method between mirtazapine and the acceptors. The equilibrium constants and thermodynamic parameters of the complexes were determined by the Benesi-Hildebrand and Van't Hoff equations. Mirtazapine in pure and dosage form was applied in this study. The results indicate that the formation constants for the complexes depend on the nature of electron acceptors and donor. And also the spectral studies of the complexes were determined by FT-IR and NMR spectroscopy.

scholarly journals Highly Efficient Recyclable Sol Gel Polymer Catalyzed One Pot Difunctionalization of Alkynes

Molecules ◽  
2018 ◽  
Vol 23 (8) ◽  
pp. 1879
Author(s):  
Justin Domena ◽  
Carlos Chong ◽  
Qiaxian Johnson ◽  
Bhanu Chauhan ◽  
Yalan Xing
Keyword(s):  
Reaction Time ◽  
Room Temperature ◽  
Functional Group ◽  
Sol Gel ◽  
One Pot ◽  
Short Reaction Time ◽  
Metal Free ◽  
Highly Efficient

Amino-bridged gel polymer P1 was discovered to catalyze alkyne halo-functionalization in excellent yields, regioselectivity, functional group compatibility, and recyclability. We have observed that both aromatic and aliphatic alkynes can be converted to α,α-dihalogenated ketones in the presence of polymer P1 under metal-free conditions at room temperature within a short reaction time.

scholarly journals Charge transfer complexes of metal-free phthalocyanine radical anions with decamethylmetallocenium cations: (Cp*2Co+)(H2Pc˙−)·solvent and (Cp*2Cr+)(H2Pc˙−)·4C6H4Cl2

2017 ◽  
Vol 46 (11) ◽  
pp. 3492-3499 ◽  
Author(s):  
Dmitri V. Konarev ◽  
Salavat S. Khasanov ◽  
Manabu Ishikawa ◽  
Akihiro Otsuka ◽  
Hideki Yamochi ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Charge Transfer Complexes ◽  
Radical Anions ◽  
Metal Free

Complexes of metal-free phthalocyanine (H2Pc) and decamethylmetallocenium cations were obtained and studied.

Sign in / Sign up

Export Citation Format

Share Document