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Tosylation and acylation of cellulose in 1-allyl-3-methylimidazolium chloride
Tosylation and acylation of cellulose were performed under mild reaction conditions using imidazolium based ionic liquids (ILs) as solvents. The non-degradative nature, lower viscosity, as well asExpand
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Photoinduced Electron Transfer in Phytochlorin-(60)Fullerene Dyads
Novel molecular electron donor−acceptor (DA) dyads, composed of a phytochlorin donor and a [60]fullerene acceptor, have been photochemically characterized. In these dyads, a pyrrolidine spacer groupExpand
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Cycloisomerization of 2-alkynylanilines to indoles catalyzed by carbon-supported gold nanoparticles and subsequent homocoupling to 3,3'-biindoles.
However, the reductive nature of those conditions limited thereaction scope and precluded the possibility of furthercascade functionalization. Soon after, Somorjai, Toste, andco-workers reported thatExpand
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Locked conformations for proline pyrrolidine ring: synthesis and conformational analysis of cis- and trans-4-tert-butylprolines.
The motional restrictions of the proline pyrrolidine ring allow this secondary amine amino acid to act as a turn inducer in many peptides and proteins. The pyrrolidine ring is known to exhibit twoExpand
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Isolation of a zwitterionic dienegold(III) complex intermediate in the direct conversion of enyne-amines to cyclopentadienes.
Gold-mediated homogeneous catalysis has shown, recently, its power, uniqueness, and versatility especially in electrophilic activation of alkynes for nucleophilic attack. Cycloisomerization ofExpand
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1H and 13C NMR spectra of the methanolic allomerization products of 132(R)‐chlorophyll a
The spontaneous autoxidation (allomerization) of 132(R)‐chlorophyll a in methanol produces seven main products containing three epimer pairs. The 1H and 13C NMR spectra of these products inExpand
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Cationic Gold Catalysis with Pyridine-Tethered Au(III) NHC-Carbenes: An Experimental and DFT Computational Study
A novel strategy is developed to produce catalytically active cationic Au(III) species by pyridine-tethered NHC complexes. The catalytic properties of two NHC complexes, equipped with distinctExpand
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Development of Bis(2‐picolyl)amine–Zinc Chelates for Imidazole Receptors
New phenyl and phenol bis(2-picolyl)amine (Dpa) derivatives have been synthesized in order to generate zinc chelates for imidazole anion receptors. Previously, binuclear phenolic zinc and copperExpand
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Tautomeric switching and metal-cation sensing of ligand-equipped 4-hydroxy-/4-oxo-1,4-dihydroquinolines.
Novel 4-hydroxyquinoline (4HQ) based tautomeric switches are reported. 4HQs equipped with coordinative side arms (8-arylimino and 3-piperidin-1-ylmethyl groups) were synthesized to access O- orExpand
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