Journal ArticleDOI
Chemical and biological synthesis of chiral epoxides
Pascale Besse,Henri Veschambre +1 more
TLDR
The chiral epoxidation of olefins with per&d8 and monooxygenases with cytochromes P-450 shows good chiral recognition ability, and the chiral reagents used in this synthesis show low levels of chiral specificity.About:
This article is published in Tetrahedron.The article was published on 1994-01-01. It has received 251 citations till now. The article focuses on the topics: Sharpless epoxidation & Enantioselective synthesis.read more
Citations
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Journal ArticleDOI
Advances in Homogeneous and Heterogeneous Catalytic Asymmetric Epoxidation
TL;DR: This paper presents results of aalysis experiment conducted at the Dalian Institute of Chemical Physics of Chinese Academy of Sciences (Dalian 116023) and Jingmen Technological College (Jingmen 448000) using gas chromatography for the recovery of Na6(CO3) from Na2SO4.
Journal ArticleDOI
Organocatalytic Oxidation. Asymmetric Epoxidation of Olefins Catalyzed by Chiral Ketones and Iminium Salts
O. Andrea Wong,Yian Shi +1 more
TL;DR: Ketones with an Attached Chiral Moiety, Chiral Iminium Salt-Catalyzed Epoxidation, and Other Carbohydrate-Based Catalysts 3976 2.8.2.
Journal ArticleDOI
α,α-Diarylprolinol Ethers: New Tools for Functionalization of Carbonyl Compounds
Antonia Mielgo,Claudio Palomo +1 more
TL;DR: Alpha,alpha-diaryl(dialkyl)prolinol ethers constitute a potent organocatalyst family which has been shown to be very general for a broad range of reactions involving enamine and iminium ion activation or a combination of both.
Journal ArticleDOI
Organocatalytic asymmetric epoxidation and aziridination of olefins and their synthetic applications.
Journal ArticleDOI
Vanadium-catalyzed asymmetric oxidations
TL;DR: Chirally modified vanadium complexes have been used as catalysts in enantioselective epoxidations of allylic alcohols and asymmetric sulfide to sulfoxide oxidations as discussed by the authors.
References
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PatentDOI
First practical method for asymmetric epoxidation
Tsutomu Katsuki,K. B. Sharpless +1 more
TL;DR: In this article, a metal alkoxide is used as a catalyst, where the metal has a coordination number of at least four, and at least one, usually two, of the alkoxide groups bonded to the metal are bonded to asymmetric carbon atoms.
Journal ArticleDOI
Metalloporphyrins as versatile catalysts for oxidation reactions and oxidative DNA cleavage
Journal ArticleDOI
Catalytic asymmetric epoxidation and kinetic resolution: modified procedures including in situ derivatization
TL;DR: The use of 3A or 4A molecular sieves substantially increases the scope of the titanium(IV)-catalyzed asymmetric epoxidation of primary allylic alcohols as mentioned in this paper.
Journal ArticleDOI
Enantioselective Epoxidation of Unfunctionalized Olefins Catalyzed by (salen)Manganese Complexes
TL;DR: The FTIR spectrum properties of compound IIIA,B are consistent with the presence of SO3groups attached to the aromatic rings of polysemiquinone polyaniline.
Journal ArticleDOI
The Osmium-Catalyzed Asymmetric Dihydroxylation: A New Ligand Class and a Process Improvement
K. Barry Sharpless,Willi Amberg,Youssef L. Bennani,Gerard A. Crispino,Jens Hartung,Kyu Sung Jeong,Hoi-Lun Kwong,Kouhei Morikawa,Zhi-Min Wang +8 more
TL;DR: In this paper, two key improvements in the osmiuun-catalyzed asymmetric dihydroxylation have led to a simple procedure which is applicable to a wide range of olefins.