Results 41 to 50 of about 17,659 (225)
Angewandte Chemie International Edition, EarlyView.1,2‐Bisborylalkanes are valuable intermediates for chemical synthesis as they could serve as a platform to generate value‐added products with two distinct functional groups at vicinal positions. A novel strategy to synthesize 1,2‐bisborylalkanes via Fe ligand‐to‐metal charge transfer (LMCT) photocatalysis is developed.
Zheye Zhang +5 more
wiley +1 more source
Bicatalytic Allylation–Cross-Metathesis Reactions as γ-Carbonyl Cation Equivalents [PDF]
, 2012 The products corresponding to the reactions of arenes and γ-carbonyl cations may be obtained by a one-pot, bicatalytic process involving InCl3-catalyzed arene allylation and cross metathesis with electron-deficient alkenes. The process is successful with
Dhaliwal, Sugadar +2 more
core +3 more sources
Chemistry – A European Journal, EarlyView.A compact C4N4 fluorophore—comprising only four carbons and four nitrogens—shows structure‐dependent fluorescence that can be rationalized by TDDFT and AFIR analyses. Rational structural design controls whether emission is turned ON or OFF through computationally identified CI structures.
Miki Kohei +5 more
wiley +1 more source
Beilstein Journal of Organic Chemistry, 2015 Various intricate propellane derivatives and oxa-bowls have been synthesized via a ring-rearrangement metathesis (RRM) as a key step starting from readily accessible starting materials such as p-benzoquinone, 1,4-naphthoquinone and 1,4-anthraquinone.
Sambasivarao Kotha, Rama Gunta
doaj +1 more source
Chiral Diol-Based Organocatalysts in Enantioselective Reactions
Molecules, 2018 Organocatalysis has emerged as a powerful synthetic tool in organic chemistry in the last few decades. Among various classes of organocatalysis, chiral diol-based scaffolds, such as BINOLs, VANOLs, and tartaric acid derivatives, have been widely used to ...
Truong N. Nguyen +3 more
doaj +1 more source
Crystals, 2023 The regiospecific S-benzylation/allylation of two 4-aryl-5-indolyl-1,2,4-triazole-3-thione precursors was carried out using Et3N as a base. Allyl group migration from exocyclic sulfur to the triazole nitrogen (N3) was successfully achieved in a short ...
Eid E. Salama +6 more
doaj +1 more source
Alkyl Bismuth Cations: Synthesis, Characterization, and Application as Z‐Type Ligands
Chemistry – A European Journal, EarlyView.Rare examples of alkyl bismuth cations [BiR2(SbF6)] are presented, including cyclopropyl ligands and a bismacyclic structure. The bismuth‐centered Lewis acids act as Z‐type ligands toward the electron‐rich platinum atom in [Pt(PCy3)2], generating a set of metal‐only Lewis pairs. The structural and spectroscopic properties of these rare types of bismuth
Johannes Schwarzmann +7 more
wiley +1 more source
ACS Catalysis, 2023 A catalytic asymmetric reaction between allenes, bis(pinacolato)diboron, and allylic gem-dichlorides is reported. The method involves the coupling of a catalytically generated allyl copper species with the allylic gem-dichloride and provides chiral internal 1,5-dienes featuring (Z)-configured alkenyl boronate and alkenyl chloride units with high levels
Martín Piñeiro-Suárez +2 more
openaire +3 more sources
Bifunctional Photocatalysts: Exploiting Proximity for Enhanced Reaction Performance
Chemistry – A European Journal, EarlyView.This review covers the application of the bifunctional approach to photocatalysis as a means to attain (enhanced) enantioselectivity, and, more in general, as a strategy to enhance the catalytic performance through an effective use of short‐lived reaction intermediates.
Luigi Dolcini +3 more
wiley +1 more source
A regioselectivity switch in Pd-catalyzed hydroallylation of alkynes. [PDF]
, 2019 By exploiting the reactivity of a vinyl-Pd species, we control the regioselectivity in hydroallylation of alkynes under Pd-hydride catalysis. A monophosphine ligand and carboxylic acid combination promotes 1,5-dienes through a pathway involving ...
Chen, Qing-An +5 more
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