Results 131 to 140 of about 4,073,255 (239)

Modular and Stereoselective Synthesis of Cyclobutane β‐Amino Alcohols

open access: yesAngewandte Chemie, Volume 138, Issue 43, 19 October 2026.
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

open access: yesMolbank
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

Diversity-Oriented Approach to Macrocyclic Cyclophane Derivatives by Suzuki–Miyaura Cross-Coupling and Olefin Metathesis as Key Steps

open access: yes, 2016
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

Electrochemiluminescence of Heteroleptic Iridium(III) Complexes Featuring Substituted 2,4‐diphenylpyridinato Ligands

open access: yesChemistry – A European Journal, Volume 32, Issue 40, 27 October 2026.
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

open access: yesAngewandte Chemie, Volume 138, Issue 43, 19 October 2026.
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

Total Synthesis of (+)-Phomopsolide C by Ring-Size Selective Ring-Closing Metathesis/Cross-Metathesis

open access: yes, 2016
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

open access: yesEuropean Journal of Organic Chemistry, Volume 29, Issue 40, 27 October 2026.
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†

open access: yes, 2016
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

Intramolecular Nickel‐Catalyzed Reductive Coupling: Enantioselective Synthesis of Tetrahydroisoquinolines and Related Heterocycles

open access: yesAngewandte Chemie, Volume 138, Issue 43, 19 October 2026.
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

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