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Author: Victoria Gómez, M.; Aranda, A.I.; Moreno, A.; Cossío, F.P.; de Cózar, A.; Díaz-Ortiz, Á.; de la Hoz, A.; Prieto, P. Description: Diels-Alder cycloaddition of 3-nitro-1-(p-toluenesulfonyl)indole 1 with dienes 2-6 under microwave irradiation in solvent-free conditions gave carbazole derivatives after elimination of the nitro group and in situ aromatization. While 3-nitro-1-(p-toluenesulfonyl)pyrrole 11 afforded indole derivatives, 4-nitro-1-(p-toluenesulfonyl)pyrazole 13 with cyclohexadiene 2 did not afford the expected cycloadduct but instead gave 1-cyclohexen-2-ylpyrazole 16. This process occurred by hydrolysis of the 1-(p-toluenesulfonyl) group, protonation of the diene and nucleophilic addition of the pyrazolate…

Author: Yun, J.I.; Kim, H.R.; Kim, S.K.; Kim, D.; Lee, J. Description: An investigation was conducted to determine whether the cross-metathesis (CM) of allyl halides tolerates amide groups. The results show that the ruthenium-based complexes I–III serve as poor catalysts for the CM of allyl halides with olefins that contain an N,N-dimethylamide group. In contrast, the Grubbs–Hoveyda–Blechert second generation catalyst (III) efficiently promotes these processes with olefins bearing a Weinreb amide group. Lastly, a reinvestigation of the ester group tolerance of the allyl halide CM with unsaturated esters demonstrated that…

Author: Yao, J.; Xiong, S.; Ma, X. Description: As electric vehicles (EVs) have been widely discussed as a promising way to mitigate the effect of climate change, various policies have been implemented across the world to promote the uptake of EVs. Policymakers also paid attention to the density of public charging points. In this paper, we examined the impact of policies on EV markets in the post subsidy era with multiple linear regression analysis using panel data on 13 countries from 2015 to 2018. Five of the independent variables showed…

Author: Sun, X.; Li, Z.; Wang, X.; Li, C. Description: To reduce the dependence on oil and environmental pollution, the development of electric vehicles has been accelerated in many countries. The implementation of EVs, especially battery electric vehicles, is considered a solution to the energy crisis and environmental issues. This paper provides a comprehensive review of the technical development of EVs and emerging technologies for their future application. Key technologies regarding batteries, charging technology, electric motors and control, and charging infrastructure of EVs are summarized. This paper also highlights the…

Author: Song, R.; Potoglou, D. Description: Accelerating the adoption of electric vehicles provides a rare historic opportunity for reducing the dependence on fossil fuel and decarbonising road networks in the field of transport. Many countries have introduced various policy packages on both national and local levels to encourage electric vehicle adoption, but their market shares remain low. For better understanding the reasons behind this evidence, exploring the determinants that influence consumers’ adoption intentions is significant. Previous literature reviews have made clear and elaborated syntheses of influential factors; however, a summary…

Author: Feng, S.; Magee, C.L. Description: Technology innovation in electric vehicles is of significant interest to researchers, companies and policy-makers of many countries. Electric vehicles integrate various kinds of distinct technologies and decomposing the overall electric vehicle field into several key domains allows determination of more detailed, valuable information. To provide both broader and more detailed information about technology development in the EV field, unlike most previous studies on electric vehicle innovation which analyzed this field as a whole, this research decomposed the electric vehicle field into domains, which are…

Author: Zeng, H.; Ju, J.; Hua, R. Description: A direct one-pot route for the synthesis of 2,2-dimethyl-2H-chromenes by Re(CO)5Cl-catalyzed cyclocondensation of phenols with 2-methyl-3-butyn-2-ol has been developed. The easy availability of starting materials, mild reaction conditions, high atom-efficiency, and the use of a recoverable catalyst are advantages of this procedure. Subject headings: Condensation; 2,2-Dimethyl-2H-chromenes; 2-Methyl-3-butyn-2-ol; Phenol; Rhenium Publication year: 2011 Journal or book title: Tetrahedron Letters Volume: 52 Issue: 30 Pages: 3926-3928 Find the full text : http://www.sciencedirect.com/science/article/pii/S0040403911008525 Find more like this one (cited by): https://scholar.google.com/scholar?cites=12171420446194572858&as_sdt=1000005&sciodt=0,16&hl=en Type: Journal Article Serial…

Author: Zhang, X.; Zhang, L.; Liu, Y.; Bao, B.; Zang, Y.; Li, J.; Lu, W. Description: A new near-infrared and colorimetric fluorescent molecular probe was developed for rapid detection of H2O2. The near-infrared fluorescence OFF–ON switch is triggered by transformation of phenylboronic acid unit to phenol in the presence of H2O2. No quinone methides are released in this process, which is preferable for in vivo studies. In addition, probe 1 at low concentration exhibits high quality optical imaging during a short period in in vitro cell study. Subject Headings: Probe;…