Regioselective Ring‐Opening of Styrene Oxide Derivatives Using Halohydrin Dehalogenase for Synthesis of 4‐Aryloxazolidinones

2019 ◽  
Vol 361 (20) ◽  
pp. 4651-4655 ◽  
Author(s):  
Nanwei Wan ◽  
Jiawei Tian ◽  
Xiaoying Zhou ◽  
Huihui Wang ◽  
Baodong Cui ◽  
...  
Keyword(s):  
Ring Opening ◽  
Styrene Oxide ◽  
Halohydrin Dehalogenase

scholarly journals Highly α-position regioselective ring-opening of epoxides catalyzed by halohydrin dehalogenase from Ilumatobacter coccineus: a biocatalytic approach to 2-azido-2-aryl-1-ols

RSC Advances ◽  
2019 ◽  
Vol 9 (29) ◽  
pp. 16418-16422 ◽  
Author(s):  
Miao An ◽  
Wanyi Liu ◽  
Xiaoying Zhou ◽  
Ran Ma ◽  
Huihui Wang ◽  
...  
Keyword(s):  
Ring Opening ◽  
Styrene Oxide ◽  
Halohydrin Dehalogenase ◽  
Ring Opening Of Epoxides

Biocatalytic synthesis of 2-azido-2-aryl-1-ols was achieved via HheG-catalyzed α-position regioselective ring-opening of styrene oxide derivatives.

scholarly journals Regioselective Ring Opening of Styrene Oxide Catalyzed by MoO2(acac)2

2015 ◽  
Vol 45 (12) ◽  
pp. 1433-1441 ◽  
Author(s):  
Hongwei Yang ◽  
Liming Xu ◽  
Cuicui Luo ◽  
Chunxu Lu ◽  
Guangbin Cheng
Keyword(s):  
Ring Opening ◽  
Styrene Oxide

ChemInform Abstract: Regioselective Ring Opening of Styrene Oxide Catalyzed by MoO2(acac)2.

ChemInform ◽  
2015 ◽  
Vol 46 (37) ◽  
pp. no-no
Author(s):  
Hongwei Yang ◽  
Liming Xu ◽  
Cuicui Luo ◽  
Chunxu Lu ◽  
Guangbin Cheng
Keyword(s):  
Ring Opening ◽  
Styrene Oxide

Catalytic Function of Fir Char Sulfonic on Styrene Oxide Alcoholysis Reactions

2011 ◽  
Vol 233-235 ◽  
pp. 74-77
Author(s):  
Li Ping Yuan ◽  
Yun Chu Hu ◽  
Qiong Xun ◽  
Du Lin Yin
Keyword(s):  
Ring Opening ◽  
Sulfonic Acid ◽  
Catalytic Properties ◽  
Styrene Oxide ◽  
Ring Structure ◽  
Addition Reactions ◽  
Environment Friendly ◽  
Catalytic Function ◽  
Ft Ir ◽  
Good Catalytic Activity

Fir char sulfonic acid was prepared by pyrolysis at 350°C and sulfonation from fir processing residues. FT-IR、XRD and XPS analysis showed that fir pyrocarbon retains the benzene ring structure of lignin, with the active hydrogen for sulfonation. And sulfonic groups successfully bonded with the charcoal skeleton. The catalytic properties of fir char sulfonic acid were investigated in the ring-opening addition reactions of styrene oxide with five alcohols. The results showed that fir char sulfonic acid has good catalytic activity in these alcoholysis reactions. The catalyst is also security, stability and environment friendly.

Catalytic Promiscuity of Halohydrin Dehalogenase and its Application in Enantioselective Epoxide Ring Opening

ChemBioChem ◽  
2008 ◽  
Vol 9 (7) ◽  
pp. 1048-1051 ◽  
Author(s):  
Ghannia Hasnaoui-Dijoux ◽  
Maja Majerić Elenkov ◽  
Jeffrey H. Lutje Spelberg ◽  
Bernhard Hauer ◽  
Dick B. Janssen
Keyword(s):  
Ring Opening ◽  
Epoxide Ring ◽  
Catalytic Promiscuity ◽  
Epoxide Ring Opening ◽  
Halohydrin Dehalogenase

scholarly journals Synthesis of a series of vicinal diamines with potential biological activity

2004 ◽  
Vol 2 (4) ◽  
pp. 686-695 ◽  
Author(s):  
Vanya Kurteva ◽  
Maria Lyapova
Keyword(s):  
Biological Activity ◽  
Anticancer Activity ◽  
Ring Opening ◽  
Styrene Oxide ◽  
Primary Amines ◽  
Reaction Series ◽  
Cisplatin Analogues ◽  
Biological Interest ◽  
Aziridinium Ions ◽  
Vicinal Diamines

AbstractA broad range of vicinal diamines based on styrene oxide are synthesisedvia mixtures of regioisomeric amino alcohols. The ring opening of the intermediate aziridinium ions by primary amines proceeds with high regioselectivity, leading to the target diamines as single regioisomers for all reaction series. The compounds are of potential biological interest as ligands for cisplatin analogues. Anticancer activity tests of both groups of compounds are in progress.

Zeolite catalyzed ring opening of styrene oxide

1996 ◽  
Vol 145 (1-2) ◽  
pp. 49-55 ◽  
Author(s):  
R DIMITROVA ◽  
V MINKOV ◽  
N MICHEVA
Keyword(s):  
Ring Opening ◽  
Styrene Oxide

scholarly journals Ring-Opening Polymerization of ε-Caprolactone and Styrene Oxide–CO2 Coupling Reactions Catalyzed by Chelated Dehydroacetic Acid–Imine Aluminum Complexes

Molecules ◽  
2021 ◽  
Vol 27 (1) ◽  
pp. 164
Author(s):  
Ting-Yen Wang ◽  
Yu-Chia Su ◽  
Bao-Tsan Ko ◽  
Yu Hsu ◽  
Yu-Fang Zeng ◽  
...  
Keyword(s):  
Ring Opening ◽  
Styrene Oxide ◽  
13C Nmr Spectroscopy ◽  
Ring Opening Polymerization ◽  
Coupling Reactions ◽  
1H And 13C Nmr ◽  
Excess Carbon ◽  
Catalytic Activities ◽  
Dehydroacetic Acid ◽  
Aluminum Compounds

A series of chelated dehydroacetic acid–imine-based ligands L1H~L4H was synthesized by reacting dehydroacetic acid with 2-t-butylaniline, (S)-1-phenyl-ethylamine, 4-methoxylbenzylamine, and 2-(aminoethyl)pyridine, respectively, in moderate yields. Ligands L1H~L4H reacted with AlMe3 in toluene to afford corresponding compounds AlMe2L1 (1), AlMe2L2 (2), AlMe2L3 (3), and AlMe2L4 (4). All the ligands and aluminum compounds were characterized by IR spectra, 1H and 13C NMR spectroscopy. Additionally, the ligands L1H~L4H and corresponding aluminum derivatives 1, 3, and 4 were characterized by single-crystal X-ray diffractometry. The catalytic activities using these aluminum compounds as catalysts for the ε-caprolactone ring-opening polymerization (ROP) and styrene oxide-CO2 coupling reactions were studied. The results show that increases in the reaction temperature and selective solvent intensify the conversions of ε-caprolactone to polycaprolactone. Regarding the coupling reactions of styrene oxide and CO2, the conversion rate is over 90% for a period of 12 h at 90 °C. This strategy dispenses the origination of cyclic styrene carbonates, which is an appealing concern because of the transformation of CO2 into an inexpensive, renewable and easy excess carbon feedstock.

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