Yi-Feng Wang

Zhejiang University of Technology

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Dan‐Qian Xu

Zhejiang University of Technology

Suo‐Suo Qi

Zhejiang University of Technology

Mingming Chu

Jiaxing University

Shu‐Ping Luo

Zhejiang University of Technology

Guangcun Zhang

People's Liberation Army No. 150 Hospital

Jing-Jing Zhai

Zhejiang University of Technology

Xiaohua Du

Zhejiang University of Technology

Feng‐Lian Zhang

University of Science and Technology of China

Chaojie Wang

Henan University

Ji‐Kang Jin

University of Science and Technology of China

Cooperative Institutions

Zhejiang University of Technology

Chinese Academy of Sciences

Hangzhou Xixi hospital

University of Science and Technology of China

Green Chemistry

Chemical Synthesis Lab

Nankai University

Shanghai Jiao Tong University

Sun Yat-sen University

University of Chinese Academy of Sciences

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薬物送達のためのメソ多孔性シリカナノ粒子へのカチオン性オリゴマコーティングのin situ生分解性橋かけ【Powered by NICT】

Colloids and Surfaces B Biointerfaces (2017)

Yi-Feng Wang Wang Jine Yang Yang Yi Sun Yuan Yuan

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Prolinethiol Ether Catalysis in an Asymmetric Michael Reaction: Solvent-Free Synthesis of Functionalized Monohaloalkenes

The Journal of Organic Chemistry (2013)

Ai‐Bao Xia Chao Wu Dan‐Qian Xu Yi-Feng Wang Xiaohua Du

The organocatalytic Michael reaction of ketones with γ-monohalonitrodienes catalyzed by chiral prolinethiol ether under solvent-free conditions was developed. The described method represents a novel approach for accessing highly functionalized monohaloalkenes with α, β-stereocenters of up to >99% ee.

Stereocenter

Michael reaction

Williamson ether synthesis

10.1021/jo302288z

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Visible light-induced oxidative α-hydroxylation of β-dicarbonyl compounds catalyzed by ethylenediamine–copper(ii)

RSC Advances (2023)

Yu He Hao Yin Yi-Feng Wang Mingming Chu Yiming Li

We have developed an efficient oxidative α-hydroxylation of β-keto esters with firstly using the structurally simple ethylenediamine-copper(ii) as a catalyst for β-keto esters activation and using visible light as the driving force for generating more active singlet oxygen (1O2) from triplet state oxygen (3O2) in the air, providing a series of α-hydroxy β-keto esters in excellent yields (up to 99%) under extremely low photosensitizer loading (0.01 mol%) and catalyst loading (1 mol%) within a short time. Moreover, the gram-scale synthesis showed the practical utility of this protocol.

Hydroxylation

Ethylene diamine

10.1039/d2ra07411g

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Copper-catalyzed asymmetric 1,6-conjugate addition of in situ generated para-quinone methides with β-ketoesters

Chemical Communications (2022)

Yi-Feng Wang Chaojie Wang Qing-Zhou Feng Jing-Jing Zhai Suo‐Suo Qi

A Cu-catalyzed asymmetric 1,6-conjugate addition of in situ generated para-quinone methides (p-QMs) with β-ketoester has been developed to construct a ketoester skeleton bearing an adjacent tertiary-quaternary carbon stereocenter in good yields and high enantioselectivities. This is the first example of metal-catalyzed asymmetric transformations of the in situ generated p-QMs, avoiding using pre-synthesized p-QMs requiring bulky 2,6-substitutions and highlighting a new dual catalytic activation with the chiral bis(oxazoline)-metal complex acting as a normal Lewis acid to activate the β-ketoesters and a source of Brønsted acid responsible for generating the p-QMs in situ.

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Oxazoline

Conjugate

Brønsted–Lowry acid–base theory

10.1039/d2cc00146b

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Fast, solvent-free and hydrogen-bonding-mediated asymmetric Michael addition in a ball mill

Green Chemistry (2012)

Yi-Feng Wang Ru‐Xiang Chen Ke Wang Bin‐Bin Zhang Zhao‐Bo Li

The chiral squaramide derivatives as hydrogen bonding catalyst for the Michael addition reactions of 1,3-dicarbonyl compounds to nitroolefins under solvent-free conditions was developed using a planetary ball mill. High yields, high enantioselectivities and shorter reaction times were achieved with low catalyst loading.

Squaramide

Michael reaction

10.1039/c2gc16521j

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(2R,5S)-5-Benzyl-2,3-dimethyl-4-oxo-2-phenylimidazolidin-1-ium chloride

Acta Crystallographica Section E Structure Reports Online (2009)

Shuai Zhang Yi-Feng Wang Bailin Li Guangcun Zhang Shu‐Ping Luo

The title hydrochloride salt, C18H21N2O+·Cl−, is an imidazolidinone catalyst, which was derived from L-phenylalanine through cyclization with acetophenone. The imidazolidinone compound has a five-membered heterocyclic ring including two chiral centres. The imidazolidinone ring displays an envelope conformation, with the flap protonated N atom lying 0.497 (3) Å above the mean plane of the remaining four atoms. In the crystal structure, one-dimensional supramolecular chains parallel to the crystallographic 21 screw axis are formed by N—H⋯Cl hydrogen bonds involving the NH2+ and Cl− groups. Intramolecular N—H⋯Cl interactions are also present.

Acetophenone

10.1107/s1600536809010460

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Ethyl 2-hydroxy-5-oxo-4-phenyl-2,3,4,5-tetrahydropyrano[3,2-c]chromene-2-carboxylate

Acta Crystallographica Section E Structure Reports Online (2009)

Wei Zhang Guangcun Zhang Bailin Li Yi-Feng Wang

The main structural unit of the title compoud, C(21)H(18)O(6), is a fused three-ring group consisting of coumarin and tetra-hydro-pyrane ring systems. Two C atoms of the tetra-hydro-pyran ring are displaced by 0.295 (3) and -0.360 (2) Å from the mean plane of coumarin ring. The dihedral angle between the phenyl and coumarin rings is 73.94 (3)°. Inter-molecular O-H⋯O hydrogen bonds are present in the crystal structure.

Dihedral angle

Carboxylate

Pyran

Tetra

10.1107/s1600536809028311

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CCDC 2220925: Experimental Crystal Structure Determination

The Cambridge Structural Database (2023)

Chang-Ling Wang Jie Wang Ji‐Kang Jin Bin Li Yee Lin Phang

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.

10.5517/ccdc.csd.cc2dk1rs

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CCDC 2248507: Experimental Crystal Structure Determination

The Cambridge Structural Database (2023)

Jinjin Zhao Yee Lin Phang Zhijuan Wang Fentahun Wondu Dagnaw Yi-Hong Lu

10.5517/ccdc.csd.cc2fgrh5

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Crystal structure of 1-bromo-4-methanesulfonyl-2,3-dimethylbenzene

Acta Crystallographica Section E Crystallographic Communications (2015)

Shangwei Dai Yi-Feng Wang

The title compound, C9H11BrO2S, is an important inter-mediate in the synthesis of the herbicide Topramezone. In the crystal, there are weak inter-molecular Br⋯O inter-actions of 3.286 (4) Å. The dihedral angle between the plane of the benzene ring and that defined by the O-S-O atoms of the methane-sulfonyl group is 49.06 (3)°.

10.1107/s205698901502099x

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Citations (1)