Abstract
From the viewpoint of green chemistry and sustainable development, it is of great significance to synthesize chemicals from CO2 as C1 source through C-N bond formation. During the past several decade years, many studies on C-N bond formation reaction were involved, and many efforts have been made on the theory. Nevertheless, several great challenges such as thermodynamic limitation, low catalytic efficiency and selectivity, and high pressure etc. are still suffered. Herein, recent advances are highlighted on the development of catalytic methods for chemical fixation of CO2 to various chemicals through C-N bond formation. Meanwhile, the catalytic systems (metal and metal-free catalysis), strategies and catalytic mechanism are summarized and discussed in detail. Besides, this review also covers some novel synthetic strategies to urethanes based on amines and CO2. Finally, the regulatory strategies on functionalization of CO2 for N-methylation/N-formylation of amines with phenylsilane and heterogeneous catalysis N-methylation of amines with CO2 and H2 are emphasized.
Highlights
With the development of green chemistry, sustainable raw materials are urgently required, and growing attention is being paid to green resources such as biomass [1], carbon dioxide (CO2 ) [2,3,4]etc. due to their good features such as abundance, renewability and sustainability
Deng et al Recently, some functional polyureas were successfully organic and inorganic base catalysts in addition of CO2 to 4,7,10-trioxa-1,13-tridecanediamine polyureas were successfully synthesized via the polymerization of CO2 with diamines using amino synthesized the polymerization of CO2 both with diamines alkali salts i.e., MATriz (TOTDDA)via[98]
Cs [124], Cu [130], and a few organocatalysts (e.g., TBAF [123], lecithin [127], etc.), the experimental addition, in some metal-based systems such as Fe [120], Cs [124], Cu [130], and a few organocatalysts evidence supports the mechanism of further formamide hydrogenation to the corresponding the (e.g., TBAF [123], lecithin [127], etc.), the experimental evidence supports the mechanism of further methylation under the corresponding conditions (Scheme 32, equations 4–8)
Summary
With the development of green chemistry, sustainable raw materials are urgently required, and growing attention is being paid to green resources such as biomass [1], carbon dioxide (CO2 ) [2,3,4]. Part of a mini-review from the Tomishige on the direct conversion of CO2 with aminoalcohols and diamines to give cyclic carbamates and group focuses on the direct conversion of CO2 with aminoalcohols and diamines to give cyclic cyclic ureas via heterogeneous catalysts [15]. Li et al focused on catalytic of urea derivatives using CO2 and amines [16]. C-N bond formation, and novel strategies have sprung up in the past few years. Products through C-N bond formation, and novel strategies have sprung up in the past few years. Wehighlight would like to highlight recent (2014–2018) in developments in catalytic methodsfixation for chemical fixation of to form various chemicals through bond formation 1. CO conversion through C-N bond formation reactions described in this work
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
