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Catalysis of the Claisen rearrangement
KC Majumdar, S Alam, B Chattopadhyay - Tetrahedron, 2008 - Elsevier
Since its discovery in 1912, 1 the Claisen rearrangement has become one of the most
widely used synthetic tools for the organic chemist. For synthetic purposes, the Claisen …
widely used synthetic tools for the organic chemist. For synthetic purposes, the Claisen …
Recent advances in the aza-Claisen rearrangement
KC Majumdar, T Bhattacharyya, B Chattopadhyay… - …, 2009 - thieme-connect.com
This brief review article describes developments in the aza-Claisen rearrangement over the
last nine years. In this article, the emphasis has been given to the various aspects of the aza …
last nine years. In this article, the emphasis has been given to the various aspects of the aza …
Threonine aldolases—an emerging tool for organic synthesis
J Steinreiber, K Fesko, C Reisinger, M Schürmann… - Tetrahedron, 2007 - Elsevier
In a systematic study, 21 ring-substituted benzaldehydes were reacted with glycine under
catalysis with a l-threonine aldolase (lTA) from Pseudomonas putida and a d-threonine …
catalysis with a l-threonine aldolase (lTA) from Pseudomonas putida and a d-threonine …
Preparation of anti-Vicinal Amino Alcohols: Asymmetric Synthesis of d-erythro-Sphinganine, (+)-Spisulosine, and d-ribo-Phytosphingosine
Two variations of the Overman rearrangement have been developed for the highly selective
synthesis of anti-vicinal amino alcohol natural products. A MOM ether-directed palladium (II) …
synthesis of anti-vicinal amino alcohol natural products. A MOM ether-directed palladium (II) …
Development of novel peptidomimetics containing a vinyl sulfone moiety as proteasome inhibitors
R Ettari, C Bonaccorso, N Micale, C Heindl… - …, 2011 - Wiley Online Library
Proteasome inhibition is a topic of great interest in anticancer research. The proteolytic
activity of this multicatalytic complex relies on three subunits, β1, β2 and β5, containing a …
activity of this multicatalytic complex relies on three subunits, β1, β2 and β5, containing a …
An unusual metal-bound 4-fluorothreonine transaldolase from Streptomyces sp. MA37 catalyses promiscuous transaldol reactions
Abstract β-Hydroxy-α-amino acids (βH-AAs) are key components of many bioactive
molecules as well as exist as specialised metabolites. Among these βH-AAs, 4 …
molecules as well as exist as specialised metabolites. Among these βH-AAs, 4 …
Copper-catalyzed substitution of α-triflyloxy nitriles and esters with silicon nucleophiles under inversion of the configuration
J Scharfbier, H Hazrati, E Irran, M Oestreich - Organic Letters, 2017 - ACS Publications
A copper-catalyzed nucleophilic displacement of α-triflyloxy nitriles and esters with silicon
nucleophiles allows for the stereospecific generation of highly enantioenriched α-silylated …
nucleophiles allows for the stereospecific generation of highly enantioenriched α-silylated …
Rhodium-catalyzed asymmetric hydrogenation of tetrasubstituted β-acetoxy-α-enamido esters and efficient synthesis of droxidopa
YQ Guan, M Gao, X Deng, H Lv, X Zhang - Chemical Communications, 2017 - pubs.rsc.org
A rhodium-catalyzed asymmetric hydrogenation of challenging tetrasubstituted β-acetoxy-α-
enamido esters was developed, giving chiral β-acetoxy-α-amido esters in high yields with …
enamido esters was developed, giving chiral β-acetoxy-α-amido esters in high yields with …
Application of Claisen rearrangement and olefin metathesis in organic synthesis
Several new synthetic methods to diverse polycycles and heterocycles on the basis of [3, 3]‐
sigmatropic rearrangement and ring‐closing metathesis as key steps are summarized. In …
sigmatropic rearrangement and ring‐closing metathesis as key steps are summarized. In …
Ether-directed, stereoselective aza-claisen rearrangements: synthesis of the piperidine alkaloid, α-conhydrine
A new approach for the stereoselective synthesis of the piperidine alkaloid (+)-α-conhydrine
and its pyrrolidine derivative has been developed using a palladium (II)-catalyzed, MOM …
and its pyrrolidine derivative has been developed using a palladium (II)-catalyzed, MOM …