Results 71 to 80 of about 10,179 (225)
Chemistry – A European Journal, EarlyView.Why add another catalyst when the product itself holds the power to catalyze its own formation? Autocatalysis in synthetic chemistry enhances reaction efficiency and uncovers novel catalytic behavior across both closed‐shell and open‐shell systems, expanding reactivity and enabling innovative design strategies.
Jaspreet Kaur, Joshua P. Barham
wiley +1 more source
Dynamic assembly of a zinc-templated bifunctional organocatalyst in the presence of water for the asymmetric aldol reaction [PDF]
, 2015 A bifunctional organocatalytic system consisting of simple pyridine ligands containing separate catalytic functionalities was assembled using ZnCl2.
Alfonso, Ignacio +3 more
core +1 more source
Chemistry – A European Journal, EarlyView.ABSTRACT In the field of organoboron chemistry, multi(boronate) esters have emerged as crucial intermediates, with various applications in synthetic chemistry, material technology, and life sciences. This mini‐review discusses recent advancement in the synthesis of these versatile compounds, particularly alkynylboronates, 1,1‐diborylalkenes, and 1,1,1 ...
Son Hoai Doan +2 more
wiley +1 more source
Living Ring-Opening Polymerization of O-Carboxyanhydrides: The Search for Catalysts
Frontiers in Chemistry, 2018 Biodegradable poly(α-hydroxy acids) can be synthesized by means of ring-opening polymerization (ROP) of O-carboxyanhydrides (OCAs). Numerous catalysts have been developed to control the living polymerization of OCAs.
Yongliang Zhong, Rong Tong
doaj +1 more source
Organocatalyst-mediated five-pot synthesis of (–)-quinine
Nature Communications, 2022 Syntheses of quinine have fascinated organic chemists for over a hundred years. Here, the authors developed an organocatalyst-mediated pot-economical enantioselective total synthesis using five reaction vessels.
Takahiro Terunuma, Yujiro Hayashi
doaj +1 more source
Chemistry – A European Journal, EarlyView.Recent theoretical efforts to elucidate the origin of enantioselectivity in transition metal‐catalyzed propargylic substitution reactions are highlighted in this review. ABSTRACT In recent years, asymmetric catalytic propargylic substitution reactions have undergone remarkable development, enabling the construction of chiral carbon centers adjacent to ...
Ken Sakata, Yoshiaki Nishibayashi
wiley +1 more source
Synthesis and Analysis of Ketoprofen 1,4-Sorbitan Ester
MolbankThis study presents the synthesis and comprehensive characterization of ketoprofen 1,4-sorbitan ester, a novel compound with potential applications in drug delivery.
Pooreum Lim, Jae Ho Shim
doaj +1 more source
Organocatalytic asymmetric fluorination of α-chloroaldehydes involving kinetic resolution
Beilstein Journal of Organic Chemistry, 2014 In a previous study it was shown that the enantioselective α-fluorination of racemic α-chloroaldehydes with a chiral organocatalyst yielded the corresponding α-chloro-α-fluoroaldehydes with high enantioselectivity.
Kazutaka Shibatomi +5 more
doaj +1 more source
Remote Substituent Effects on the Stereoselectivity and Organocatalytic Activity of Densely Substituted Unnatural Proline Esters in Aldol Reactions [PDF]
, 2015 The organocatalytic activities of highly substituted proline esters obtained through asymmetric [3+2] cycloadditions of azomethine ylides derived from glycine iminoesters have been analyzed by 19F NMR and through kinetic isotope effects.
Castelló Moncayo, Luis Miguel +10 more
core +2 more sources
Bifunctional Photocatalysts: Exploiting Proximity for Enhanced Reaction Performance
Chemistry – A European Journal, EarlyView.This review covers the application of the bifunctional approach to photocatalysis as a means to attain (enhanced) enantioselectivity, and, more in general, as a strategy to enhance the catalytic performance through an effective use of short‐lived reaction intermediates.
Luigi Dolcini +3 more
wiley +1 more source