Results 1 to 10 of about 6,329 (228)

Rh(II) catalyzed efficient sigmatropic rearrangement reaction of pyridotriazoles and sulfides

open access: diamondGreen Synthesis and Catalysis, 2023
The [2,3]- and [1,2]-sigmatropic rearrangement reactions between pyridotriazoles and sulfides catalyzed by rhodium(II) were investigated. The utilization of pyridotriazoles as the carbene precursors in this kind of reaction efficiently constructed the C ...
Yuting Chen   +6 more
doaj   +2 more sources

Organocatalytic C─O Bond Cleavage and Asymmetric Transformations via [1,3]‐Sigmatropic Rearrangement [PDF]

open access: yesAdvanced Science
Here, an organocatalytic asymmetric [1,3]‐sigmatropic rearrangement process for aryl ether insertion through C─O bond cleavage and downstream transformation is reported, enabling the practical and atom‐economic synthesis of diverse valuable chiral ...
Lei Peng   +7 more
doaj   +2 more sources

Design and Experimental Validation of a Photocatalyst Recommender Based on a Large Language Model. [PDF]

open access: yesAngew Chem Int Ed Engl
Choosing a photocatalyst for a given reaction can be challenging due to complex mechanisms and multiple parameters that govern the outcome of a photocatalyzed reaction. Herein, we disclose a machine learning (ML) model that can suggest catalysts for a given reaction using an online portal.
Millward F   +13 more
europepmc   +3 more sources

[2,3]-Sigmatropic rearrangement with [1.1.1]propellane [PDF]

open access: yesNature Communications
The most established reactivity of [1.1.1]propellane involves addition reactions at the bridge C-C bond, resulting in the formation of bicyclo[1.1.1]pentane derivatives.
Suparnak Midya   +2 more
doaj   +2 more sources

Regioselective [5,5]‐Sigmatropic Rearrangement Reactions of Aryl Hydrazides. [PDF]

open access: greenChemInform, 2006
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Hong-Min, Kang   +4 more
openaire   +4 more sources

Sequential Diels–Alder/[3,3]-sigmatropic rearrangement reactions of β-nitrostyrene with 3-methyl-1,3-pentadiene [PDF]

open access: diamondBeilstein Journal of Organic Chemistry, 2013
The tin(IV)-catalyzed reaction of β-nitrostyrene with (E)-3-methyl-1,3-pentadiene in toluene afforded two major nitronic ester cycloadducts in 27% and 29% yield that arise from the reaction at the less substituted diene double bond.
Peter A. Wade   +3 more
doaj   +2 more sources

Domino reaction of 3-nitro-2-(trifluoromethyl)-2H-chromenes with 2-(1-phenylalkylidene)malononitriles: synthesis of functionalized 6-(trifluoromethyl)-6H-dibenzo[b,d]pyrans and a rare case of [1,5] sigmatropic shift of the nitro group [PDF]

open access: closed, 2013
A variety of functionalized 6-(trifluoromethyl)-6H-dibenzo[b,d]pyrans were easily synthesized in good yields under mild conditions by a domino reaction of 3-nitro-2-(trifluoromethyl)-2H-chromenes with 2-(1-phenylethylidene)- and 2-(1-phenylpropylidene ...
Vladislav Yu. Korotaev   +2 more
openalex   +2 more sources

Theoretical investigation of Banert cascade reaction [PDF]

open access: yesRoyal Society Open Science, 2018
Computational inside of Banert cascade reaction for triazole formation is studied with B3LYP/6-31G(d,p) level of theory. The reaction proceeds mainly by SN2 initial chloride displacement rather than SN2′-type attack. Furthermore, according to the rate of
S. Bhattacharyya, K. Hatua
doaj   +1 more source

Copper-Catalyzed Synthesis of Axially Chiral Biaryls with Diaryliodonium Salts as Arylation Reagents

open access: yesMolecules, 2021
NOBIN and BINAM derivatives harboring biaryl frameworks are recognized as a class of important atropisomers with versatile applications. Here, we present an efficient synthetic route to access such compounds through copper-catalyzed domino arylation of N-
Ji-Wei Zhang   +3 more
doaj   +1 more source

Claisen Rearrangement Toward Cyclic Compound on Different Organic Synthesis Methods: Short Review

open access: yesChempublish Journal, 2023
The synthesis of functional and complex organic compounds is majorly performed by the Claisen rearrangement method. Claisen rearrangement is one of [3,3] sigmatropic rearrangements, a complex method in the synthesis of organic compounds, where it is ...
Rizki Rachmad Saputra   +7 more
doaj   +1 more source

Home - About - Disclaimer - Privacy