scholarly journals Functionalized polycarbonates via triphenylborane catalyzed polymerization-hydrosilylation

RSC Advances ◽  
2019 ◽  
Vol 9 (46) ◽  
pp. 26542-26546 ◽  
Author(s):  
Kori A. Andrea ◽  
Francesca M. Kerton
Keyword(s):  
Carbon Dioxide ◽  
Lewis Acid ◽  
Base Pair ◽  
Functional Polymers ◽  
Tandem Catalysis ◽  
Acid Base ◽  
Catalyzed Polymerization

Lewis acid-base pair can be used to make functional polymers from carbon dioxide in a single-pot through tandem catalysis.

An Intramolecular Boron Nitrogen Lewis Acid Base Pair on a Rigid Naphthyl Backbone

2012 ◽  
Vol 67 (6) ◽  
pp. 589-593 ◽  
Author(s):  
Daniel Winkelhaus ◽  
Beate Neumann ◽  
Norbert W. Mitzel
Keyword(s):  
Nmr Spectroscopy ◽  
Single Crystal ◽  
Lewis Acid ◽  
Elemental Analysis ◽  
Base Pair ◽  
Ring System ◽  
X Ray Diffraction ◽  
Acid Base ◽  
X Ray ◽  
Boron Nitrogen

The reaction of (C6F5)2BCl with 8-lithio-N,N-dimethyl-1-naphthylamine (1) afforded the fivemembered ring system 8-bis(pentafluorophenyl)boryl-N,N-dimethyl-1-naphthylamine (2) with an intramolecular dative B-N bond. The compound was characterised by elemental analysis, NMR spectroscopy and single-crystal X-ray diffraction.

A Comparison of the Lewis Basicity of Diamidocarbenes and Diaminocarbenes

2015 ◽  
Vol 68 (7) ◽  
pp. 1084 ◽  
Author(s):  
Chin-Hung Lai
Keyword(s):  
Density Functional Theory ◽  
Lewis Acid ◽  
Base Pair ◽  
Bond Energy ◽  
Density Functional ◽  
Hydrogen Abstraction ◽  
Density Functional Theory Calculations ◽  
Acid Base ◽  
Functional Theory ◽  
The Density Functional Theory

In this study, density functional theory calculations, using the M06-2X functional, were performed to investigate the efficiencies of various carbenes in inducing hydrogen abstraction in BH3 through the formation of a Lewis acid–base pair with BH3. The density functional theory results indicate that diamidocarbenes are more efficient in reducing the B–H bond energy of BH3 than diaminocarbenes. Natural bond orbital and combined charge and bond energy analyses were performed to investigate the Lewis acid–base pair formed by BH3 and the title carbenes.

Facile Synthesis of Triarylmethanimine Promoted by a Lewis Acid - Base Pair: Theoretical and Experimental Studies

2012 ◽  
Vol 65 (10) ◽  
pp. 1390 ◽  
Author(s):  
Yan Liu ◽  
Qiwu Yang ◽  
Dongling Hao ◽  
Wenqin Zhang
Keyword(s):  
Lewis Acid ◽  
Base Pair ◽  
Density Functional ◽  
Electronic Effect ◽  
Functional Group ◽  
Experimental Studies ◽  
Acid Base ◽  
Functional Theory ◽  
Mechanistic Analysis ◽  
Work Up

An efficient method for triarylmethanimine synthesis promoted by a Lewis acid–base pair (AlCl3–Et3N) was designed using mechanistic analysis with the aid of density functional theory. A series of triarylmethanimines were successfully prepared under mild conditions in good to excellent yields with a simple work-up procedure. The promoter, the Lewis acid–base pair (AlCl3–Et3N), is inexpensive, efficient, and shows good functional group tolerance. The experimental results show that the electronic effect played a significant role, i.e. the reactions proceeded smoothly when electron-sufficient arylamines and electron-deficient ketones were used as substrates.

Lewis acid–base bifunctional aluminum–salen catalysts: synthesis of cyclic carbonates from carbon dioxide and epoxides

RSC Advances ◽  
2016 ◽  
Vol 6 (4) ◽  
pp. 3243-3249 ◽  
Author(s):  
Yanwei Ren ◽  
Ou Jiang ◽  
Hang Zeng ◽  
Qiuping Mao ◽  
Huanfeng Jiang
Keyword(s):  
Carbon Dioxide ◽  
Lewis Acid ◽  
Cyclic Carbonates ◽  
Acid Base ◽  
Salen Complexes

Two Lewis acid–base bifunctional Al(salen) complexes proved to be efficient and recyclable one-component catalysts for CO2 fixation.

ChemInform Abstract: Lewis Acid-Base Bifunctional Aluminum-Salen Catalysts: Synthesis of Cyclic Carbonates from Carbon Dioxide and Epoxides.

ChemInform ◽  
2016 ◽  
Vol 47 (21) ◽  
Author(s):  
Yanwei Ren ◽  
Ou Jiang ◽  
Hang Zeng ◽  
Qiuping Mao ◽  
Huanfeng Jiang
Keyword(s):  
Carbon Dioxide ◽  
Lewis Acid ◽  
Cyclic Carbonates ◽  
Acid Base
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