Results 41 to 50 of about 1,004,074 (357)
Application of Nickel(II) Complexes to the Efficient Synthesis of ?- or ?-Amino Acids
CHIMIA, 2011 Nonproteinogenic ?- or ?-amino acids have attracted tremendous attention, as they are widely utilized for biological, biochemical, pharmaceutical, and asymmetric chemical investigations.
Jiang Wang +4 more
doaj +1 more source
Asymmetric organocatalytic Michael addition of cyclopentane-1,2-dione to alkylidene oxindole
Beilstein Journal of Organic Chemistry, 2022 An asymmetric Michael reaction between cyclopentane-1,2-dione and alkylidene oxindole was studied in the presence of a multifunctional squaramide catalyst. Michael adducts were obtained in high enantioselectivities and in moderate diastereoselectivities.
Estelle Silm +2 more
doaj +1 more source
Sulfonated Hyaluronic Acid-Based Polymers and Hydrogels Using Thiol-Ene and Thiol-Michael Reactions. [PDF]
Macromol BiosciBeeren IAO +8 more
europepmc +2 more sources
A Tandem Conjugate Addition–Intramolecular Horner–Wadsworth–Emmons Olefination Approach to the Synthesis of Cyclopentene[c]chroman-2-ones and Cyclopent-1-enecarboxylates [PDF]
, 2013 A strategically new approach to cyclopentene[c]chroman- 2-ones and cyclopent-1-enecarboxylates by tandem Michael– Horner–Wadsworth–Emmons reaction of 2,5-hexanedione with 3-(diethoxyphosphoryl)coumarins is described. The products were obtained as single
Deredas, Dariusz +3 more
core +1 more source
Green Chemistry Letters and Reviews, 2017 In this paper, we describe a new, simple and efficient strategy for the formation of novel and valuable acyl hydrazide derivatives from reaction between diverse acyl hydrazides and α,β-unsaturated esters in the presence of 1,4-diaza-bicyclo[2,2,2]octane (
Roghayyeh Asgharzadeh +2 more
doaj +1 more source
FEBS Letters, EarlyView.The pyruvate generator, which causes activation of respiration by extra‐mitochondrial Ca2+, is also present and functional in rat brainstem mitochondria, as it is in other brain regions. This finding is confirmed by experiments with a fully reconstituted malate–aspartate shuttle (MAS).
Grazyna Debska‐Vielhaber +7 more
wiley +1 more source
Laminate comprising fibers embedded in cured amine terminated bis-imide [PDF]
, 1986 Amine terminated bisaspartimides are prepared by a Michael type reaction of an aromatic bismaleimide and an aromatic diamine in an aprotic solvent. These bisaspartimides are thermally polymerized to yield tough, resinous polymers crosslinked through -NH-
Fohlen, G. M., Kumar, D., Parker, J. A.
core +1 more source
A Convenient Approach to a Novel Group of Quaternary Amino Acids Containing a Geminal Bisphosphonate Moiety [PDF]
, 2014 Quaternary amino acids containing a geminal bisphosphonate moiety have been synthesized for the first time. The developed two-step reaction sequence utilizes the Michael addition of α-substituted azlactones to a vinylidene bisphosphonate as the key step.
Albrecht, Łukasz +2 more
core +1 more source
Journal of Saudi Chemical Society, 2017 A convenient green chemistry method through one pot four component tandem synthesis of hexahydroquinoline via enaminone intermediate using dimedone, ammonium acetate, aryl aldehydes and malononitrile has been described in aqueous media without the use of
D. Patil +5 more
doaj +1 more source
Molecular Oncology, EarlyView.Meta‐transcriptome analysis identified FGF19 as a peptide enteroendocrine hormone associated with colorectal cancer prognosis. In vivo xenograft models showed release of FGF19 into the blood at levels that correlated with tumor volumes. Tumoral‐FGF19 altered murine liver metabolism through FGFR4, thereby reducing bile acid synthesis and increasing ...
Jordan M. Beardsley +5 more
wiley +1 more source