Results 131 to 140 of about 4,073,255 (239)
Modular and Stereoselective Synthesis of Cyclobutane β‐Amino Alcohols
Late‐stage functionalization and photoisomerization of 1,2‐azaborine leads to a general strategy for the synthesis of diversely substituted cyclobutane β‐amino alcohols. The relative stereochemistry of the resulting products is unambiguously defined by the stereospecific and stereoselective nature of the photoisomerization‐hydrogenation‐oxidation ...
Xinyu Yang +3 more
wiley +2 more sources
(S,Z)-1,4-Bis(benzyloxy)hexa-3,5-dien-2-ol
Naturally occurring carbohydrates serve as useful building blocks, and various derivatives have been employed in natural product syntheses. For instance, some aldoses can be converted to 1,3-dienes via the Wittig reaction at the anomeric carbon ...
Akihiro Iyoshi +3 more
doaj +1 more source
Palladium-catalyzed Suzuki–Miyaura (SM) cross-coupling reaction with allylboronic acid pinacol ester and titanium assisted cross-metathesis (CM)/ring-closing metathesis (RCM) cascade has been used to synthesize macrocyclic cyclophane ...
Mobin Shaikh (2130448) +2 more
core +1 more source
Five heteroleptic iridium(III) complexes bearing cyclometalated 2,4‐diphenylpyridinato ligands were synthesized and their electrochemiluminescence (ECL) investigated. Two different coreactants were evaluated: tri‐n‐propylamine and benzoyl peroxide under anodic and cathodic potentials, respectively.
Ovini Jayawardana +6 more
wiley +1 more source
Orchestrating Anion–π+ Interactions to Accelerate Metal‐Free Room‐Temperature Phosphorescence
Tuning anion–π+ interactions in pyridinium iodide contact ion pairs enables ultrafast metal‐free room‐temperature phosphorescence (540–605 nm) with radiative rates up to 5.2×105 s−1. Strong iodide→π+ charge‐transfer coupling, enhanced spin–orbit interactions, and dynamic ion‐pair organization accelerate intersystem crossing and emission, establishing ...
Eetu Hakkarainen +12 more
wiley +2 more sources
Formation of Bifunctional Octasilsesquioxanes via Silylative Coupling and Cross-Metathesis Reaction. [PDF]
Bołt M +4 more
europepmc +1 more source
A new strategy for the synthesis of chiral 6-substituted 5,6-dihydro-5-hydroxypyran-2-ones by ring-size selective ring-closing metathesis (RCM) and its application to a short total synthesis of (+)-phomopsolide C are described.
Simon Michaelis (2089381) +1 more
core +1 more source
Synthetic Strategies for the Construction of Cyclobutane‐Fused Heterocycles
Cyclobutane‐fused heterocycles are important motifs commonly present in bioactive compounds, recognized for their rigid 3D structures that confer unique properties. However, synthesizing these compounds remains challenging. This review discusses current methods for their synthesis, such as photochemical, metal‐catalyzed, and Lewis acid‐mediated [2 + 2]
Michela Vargiu +2 more
wiley +1 more source
Regioselective Ring-Opening Metathesis−Cross Metathesis of Bridgehead-Substituted 7-Azanorbornene†
In this paper we describe a highly regioselective ring-opening metathesis−cross metathesis (ROM−CM) process between methyl N-Boc-7-azabicyclo[2.2.1]hept-2-en-1-carboxylate, a bridgehead-substituted 7-azanorbornene system, and electron-poor olefins.
J. H. Busto (2496457) +3 more
core +1 more source
The successful extension of the nickel‐catalyzed asymmetric coupling of polarized 1,3‐dienes with aldehydes to an intramolecular setting opens an efficient new entry into hydroxylated N‐heterocyclic compounds, most notably valuable tetrahydroisoquinolines.
Thilo Bender +3 more
wiley +2 more sources

