Results 241 to 250 of about 82,293 (280)

Rh(III)-Catalyzed Enaminone-Directed C-H Coupling with Diazodicarbonyls for Skeleton-Divergent Synthesis of Isocoumarins and Naphthalenes.

Organic Letters, 2022
Diversity-oriented synthesis is tremendously useful for expanding the explorable chemical space but restricted by the limited available toolbox of skeleton-diversification chemistry.
Weiping Wu, Xuan Wu, Shuaixin Fan, Jin Zhu   +3 more
semanticscholar   +1 more source

Burden and Risk of Polychlorinated Naphthalenes in Chinese Human Milk and a Global Comparison of Human Exposure.

Environmental Science and Technology, 2021
Polychlorinated naphthalenes (PCNs) are carcinogenic contaminants. Residues from historical production and ongoing unintentional releases from industrial thermal sources have led to the ubiquitous presence of PCNs in the environment.
Cui Li, Jingguang Li, Bing Lyu, Yongning Wu, Lili Yang, M. Zheng, Y. Min, Lei Zhang, Guorui Liu   +8 more
semanticscholar   +1 more source

Switching The Mallory Reaction to Synthesis Of Naphthalenes, Benzannulated Heterocycles and their Derivatives.

Journal of Organic Chemistry, 2020
This review analyzes the new life of a long-known reaction, the photocyclization of diarylethenes, which became a classical tool for the synthesis of phenanthrenes and their heterocyclic analogs (Mallory reaction).
A. Lvov
semanticscholar   +1 more source

One-Pot Synthesis of Methyl-Substituted Benzenes and Methyl-Substituted Naphthalenes from Acetone and Calcium Carbide

Industrial & Engineering Chemistry Research, 2019
Methyl-substituted benzenes and methyl-substituted naphthalenes are important starting chemicals for organic synthesis and polymer production and superior additives of high-density fuels.
Dong Wang, Zhenyu Liu, Qingya Liu
semanticscholar   +1 more source

Nitromethane as a Carbanion Source for Domino Benzoannulation with Ynones: One-Pot Synthesis of Polyfunctional Naphthalenes and a Total Synthesis of Macarpine.

Angewandte Chemie, 2018
A one-pot, transition-metal-free, domino Michael/SN Ar protocol of general applicability has been devised for the regioselective synthesis of polyfunctional naphthalenes by employing nitromethane and ortho-haloaryl ynones.
Shweta Singh, Ramesh Samineni, Srihari Pabbaraja, G. Mehta   +3 more
semanticscholar   +1 more source

Dipyrene-Fused Dicyclopenta[a,f]naphthalenes.

Journal of Organic Chemistry, 2019
Herein, we demonstrate an efficient synthesis of two antiaromatic constitutional isomers of pyrene-fused dicyclopenta[a,f]naphthalenes (PCPNs) 1a and 1b featuring 44 π-conjugated electrons.
Jason Melidonie, E. Dmitrieva, Kecheng Zhang, Yubin Fu, A. Popov, W. Pisula, R. Berger, Junzhi Liu, Xinliang Feng   +8 more
semanticscholar   +1 more source

Ruthenium-Catalyzed Cycloisomerization of 2-Alkynylstyrenes via 1,2-Carbon Migration That Leads to Substituted Naphthalenes.

Chemistry, 2018
A ruthenium-catalyzed carbocyclization of 2-alkynylstyrenes that involves a very rare 1,2-carbon migration of internal alkynes is reported. Various 1,2-di -and 1,4,7-trisubstituted naphthalenes are synthesized.
Takuma Watanabe, Haruka Abe, Y. Mutoh, S. Saito   +3 more
semanticscholar   +1 more source

Sequential σ-Bond Insertion/Benzannulation Involving Arynes: Selective Synthesis of Polysubstituted Naphthalenes.

Journal of Organic Chemistry, 2018
An interesting σ-bond insertion/benzannulation reaction for the synthesis of polysubstituted naphthalene derivatives has been developed from readily accessible ketones, arynes, and alkynoates.
Wen-Ming Shu, Shan Liu, Jian-Xin He, Shuai Wang, A. Wu   +4 more
semanticscholar   +1 more source

Enaminones as Synthons for a Directed C-H Functionalization: Rh(III) -Catalyzed Synthesis of Naphthalenes.

Angewandte Chemie, 2016
Shuguang Zhou, Jinhu Wang, Lili Wang, Chao Song, Kehao Chen, Jin Zhu   +5 more
semanticscholar   +1 more source

Sequential Carbon-Carbon/Carbon-Selenium Bond Formation Mediated by Iron(III) Chloride and Diorganyl Diselenides: Synthesis and Reactivity of 2-Organoselenyl-Naphthalenes.

Journal of Organic Chemistry, 2017
A. Recchi, D. Back, G. Zeni
semanticscholar   +1 more source