Results 81 to 90 of about 12,576,498 (281)
Synthesis of α‐Pentafluorosulfanylated‐β2,3‐Amino Esters
ChemistryEurope, EarlyView.De novo α‐SF5‐β2,3‐amino esters are now accessible through a straightforward aza‐Michael reaction using a series of newly developed (E)‐α‐SF5‐α,β‐unsaturated esters. Two new, highly functionalized, contiguous tertiary stereocenters are formed with diastereodivergence governed by the choice of solvent and/or base.
Thi Mo Nguyen +5 more
wiley +1 more source
W2,p a priori estimates for nonvariational operators: the sharp maximal function technique
Bruno Pini Mathematical Analysis Seminar, 2018 We consider a nonvariational degenerate elliptic operator, structured on a system of left invariant, 1-homogeneous, Hörmander vector fields on a Carnot group, where the coefficient matrix is symmetric, uniformly positive on a bounded domain and the ...
Marco Bramanti
doaj +1 more source
ChemMedChem, EarlyView.A streamlined Ullmann‐Goldberg strategy enabled the synthesis of benzo[b]thiophene‐2‐carboxamides, promising ligands of the pro‐inflammatory RAGE receptor involved in inflammaging and age‐related diseases. LC‐MS, NMR, X‐ray and DFT studies elucidated the copper‐catalyzed mechanism. The lead compound, 3t’, shows inhibitory activity on the sRAGE/AGE2‐BSA
Lisa Bonin +10 more
wiley +1 more source
Rankine Carnot Batteries with the Integration of Thermal Energy Sources: A Review
Energies, 2020 This paper provides an overview of a novel electric energy storage technology. The Thermally Integrated Pumped Thermal Electricity Storage (TI-PTES) stores electric energy as thermal exergy.
Guido Francesco Frate +2 more
doaj +1 more source
Invariant Carnot-Caratheodory metrics on $S^3$, $SO(3)$, $SL(2)$ and lens spaces
, 2008 In this paper we study the invariant Carnot-Caratheodory metrics on $SU(2)\simeq S^3$, $SO(3)$ and $SL(2)$ induced by their Cartan decomposition and by the Killing form.
Boscain, Ugo, Rossi, Francesco
core +1 more source
Ball‐Milling Assisted Iron‐Catalyzed Difluoromethylation Toward the Synthesis of Valuable Oxindoles
ChemSusChem, EarlyView.An iron‐catalyzed difluoroalkylation of acrylamides under ball‐milling conditions affords oxindoles in up to 85% yield. Analytical studies reveal that the apparent piezoelectric activity originates from iron leaching caused by milling assembly abrasion during the reaction process. The iron‐catalyzed process proves to be efficient with a broad substrate
Vitalii Solomin +4 more
wiley +1 more source
The Isoperimetric Problem in Carnot-Caratéodory Spaces
Bruno Pini Mathematical Analysis Seminar, 2017 We present some recent results obtained on the isoperimetric problem in a class of Carnot-Carathéodory spaces, related to the Heisenberg group. This is the framework of Pansu’s conjecture about the shape of isoperimetric sets.
Valentina Franceschi
doaj +1 more source
Metric currents, differentiable structures, and Carnot groups [PDF]
, 2011 We examine the theory of metric currents of Ambrosio and Kirchheim in the setting of spaces admitting differentiable structures in the sense of Cheeger and Keith.
Williams, Marshall
core +1 more source
European Journal of Organic Chemistry, EarlyView.Ready access to six‐membered phosphorus heterocycles through copper‐catalyzed intramolecular hydrophosphorylation of ortho‐alkynyl secondary phosphine oxides is described. The reaction proceedes with high regio‐ and stereoselectivity. An atom‐economic copper‐catalyzed intramolecular hydrophosphorylation of ortho‐alkynyl secondary phosphine oxides ...
Hamdi Sanaa +3 more
wiley +1 more source
Analysis and Geometry in Metric SpacesIn the realm of sub-Riemannian manifolds, a relevant question is: what are the metric lines (isometric embedding of the real line)? The space of kk-jets of a real function of one real variable xx, denoted by Jk(R,R){J}^{k}\left({\mathbb{R}},{\mathbb{R}}),
Bravo-Doddoli Alejandro
doaj +1 more source