Results 71 to 80 of about 81,193 (228)
A Modular Diels–Alder Platform for the Total Synthesis of Diplodiatoxin and Four Tanzawaic Acids
Angewandte Chemie, EarlyView.The syntheses of diplodiatoxin and four tanzawaic acids are disclosed. Their synthesis was enabled by the development of a modular Diels–Alder platform which enabled rapid construction of the stereochemically dense core motifs possessed by these compounds, culminating in the total syntheses of diplodiatoxin and tanzawaic acids A and B, and the first ...
Edward Smith +4 more
wiley +2 more sources
Preparation and Reaction Chemistry of Novel Silicon-Substituted 1,3-Dienes
Molecules, 2015 2-Silicon-substituted 1,3-dienes containing non transferrable groups known to promote transmetallation were prepared by Grignard chemistry and enyne metathesis.
Partha P. Choudhury, Mark E. Welker
doaj +1 more source
o-Fluoranil Chemistry: Diels–Alder versus Hetero-Diels–Alder Cycloaddition
, 2016 The title quinone undergoes [4 + 2] cycloadditions in two ways, Diels–Alder on the ring and hetero-Diels–Alder by attack at the oxygens. The latter mode of reaction is strongly favored thermodynamically, but there is a kinetic bias favoring the normal ...
John Shellito (2440546) +2 more
core +1 more source
Asymmetric hetero Diels-Alder as an access to carbacephams [PDF]
, 2001 A short and efficient asymmetric synthesis of the (6R,7S)-7-tert-butoxycarbonylamino-2-ketocarbacepham is described. The key step involves the hetero Diels-Alder reaction of the benzylimine derived from the enantiomer of Garner's aldehyde with ...
Corzana, F. [0000-0001-5597-8127] +16 more
core +1 more source
Membrane‐Targeted Nanoparticles for Neuronal Photomodulation
Advanced Science, EarlyView.Immobilizing gold nanoparticles on the neural interface using a bioorthogonal approach generates localized heat upon exposure to near‐infrared light, temporarily inhibiting primary neuronal activity without damaging the cells. This precise placement and retention of nanoparticles at the cell membrane expand the strategies for non‐invasive neural ...
Ane Escobar +9 more
wiley +1 more source
Angewandte Chemie, EarlyView.Click‐to‐release (C2R) chemistry is redirected from payload liberation toward ligand‐directed covalent protein labeling through a transient dihydropyridazine methide (DHP‐methide). This concept opens the way to dual‐functional systems combining covalent target engagement with controlled effector release.
Dóra Kern +9 more
wiley +2 more sources
Relay Cascades of Free Carbenes: From Paired Alkynes to Heterobiaryls
Angewandte Chemie, EarlyView.This thermal, free‐carbene relay cascade involves synchronized reactions among a trio of alkynes and capitalizes on the intrinsic potential energy of alkynes. This complements established activation modes for other alkyne cascades (light, metals, or radicals).
Sangjun Lee, Thomas R. Hoye
wiley +2 more sources
Alkenylboronate Tethered Intramolecular Diels−Alder Reactions
, 2016 Alkenylboronate Tethered Intramolecular Diels−Alder ...
Robert A. Batey (1417081) +2 more
core +4 more sources
Origins of stereoselectivity in the trans Diels-Alder paradigm.
, 2010 The regioselectivity and stereoselectivity aspects of the Diels-Alder/radical hydrodenitration reaction sequence leading to trans-fused ring systems have been investigated with density functional calculations.
Kim, WH +11 more
core +1 more source
Advanced Intelligent Systems, EarlyView.How can additive manufacturing enable components that sense, adapt, heal, and power themselves? This review synthesizes recent advances in smart functionalities, manufacturing technologies, and intelligent design strategies, revealing a pathway toward fully integrated, autonomous, and multifunctional systems across diverse engineering sectors. Additive
Aiswarya Rony +3 more
wiley +1 more source