Results 111 to 120 of about 156,373 (305)
Skeletal editing of pyridines to aryldialdehydes
Nature CommunicationsElectron-deficient nitrogen-containing aromatic heterocycles, particularly pyridine derivatives, can be converted into all-carbon aromatic frameworks via the ANRORC (Addition of Nucleophile, Ring-Opening, and Ring-Closing) skeletal editing process ...
Meixin Yan +14 more
doaj +1 more source
Facile Conversion of Epoxides to 1,2-Diacetates with NaOAc•3H2O/Ac2O System [PDF]
Iranian Journal of Chemistry & Chemical Engineering, 2016 This study represents a highly efficient and regioselective ring-opening of epoxides with acetic anhydride in the presence of NaOAc·3H2O at solvent-free conditions.
Masumeh Gilanizadeh, Behzad Zeynizadeh
doaj
The ubiquitin‐proteasome system and autophagy as guardians of the cellular proteome
FEBS Letters, EarlyView.This Perspective covers the three principles governing the crosstalk between the ubiquitin‐proteasome system and autophagy in cellular proteostasis: (1) a shared ubiquitin code routing substrates via shuttle factors or autophagy receptors; (2) spatial compartmentalization into phase‐separated degradation hubs and organelle‐specific modules (exemplified
Ivan Dikic
wiley +1 more source
Aspectos de la polimerización de glicidil metacrilato y sulfuro de propileno, usando difenilcinc como iniciador [PDF]
Avances en Química, 2010 The catalytic activity of diphenylzinc as initiator in the ring opening polymerization of glycidyl methacrylate (GMA) and propylene sulfide (PS) was analyzed. Diphenylzinc exhibited high activity as initiator in the polymerization of both monomers.
Alejandra Del Valle +2 more
doaj
The ring opening reaction of indole-2,3-epoxides with acid
四川大学学报. 自然科学版, 2023 A series of dihydroindoles 3-ester substituted compounds can be obtained in high yield by the acid ring-opening reaction of epoxy using indole-2,3-epoxy compounds and commercial acids as the main reactants.
FU Kai +4 more
doaj
FEBS Letters, EarlyView.An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley +1 more source
Metal-free ring-opening of epoxides with potassium trifluoroborates
, 2014 The ring-opening of epoxides with potassium trifluoroborates proceeds smoothly in the presence of trifluoroacetic anhydride under metal-free conditions. The reactions are regioselective and afford a single diastereomer.
Roscales García, Silvia +1 more
core +1 more source
Ubiquitination of secretory granules promotes their crinophagic degradation in Drosophila
FEBS Letters, EarlyView.Ubiquitination of secretory granules in Drosophila larval salivary glands is a critical molecular trigger for crinophagy, the lysosomal degradation of unreleased, or low‐quality granules. The E3 ubiquitin ligase Cnot4 is recruited to the surface of secretory granules to induce crinophagy.
Tamás Csizmadia +6 more
wiley +1 more source
Organozinc-promoted ring opening of cyclopropanols
ARKIVOC, 2012 Pragna Pratic Das +2 more
doaj +1 more source
Nucleophilic opening of the 3,5-anhydro ring in 1,2-O-cyclohexylidene-a-D-xylofuranose [PDF]
Journal of the Serbian Chemical Society, 2001 The reactivity of the oxetane ring in 3,5-anhydro-1,2-O-cyclohexylidene-a-D-xylofuranose (1) was exemplified by its regiospecific nucleophilic opening. The action of concentrated hydrobromic or hydroiodic acid on 1 resulted in the exclusive formation of
JANOS CANADI +3 more
doaj