Results 101 to 110 of about 264,075 (214)

Inverting the Regioselectivity of 1,3-Dipolar Cycloaddition Reaction Between Nitrones and Enal Derivatives

Reactions
The 1,3-dipolar cycloaddition of nitrones with hydrazones affords 5-iminoisoxazolidines as the major products, in contrast to the reaction with enals, which exclusively afford 4-acylisoxazolidines.
Yuki Maeda, Yoshimitsu Hashimoto, Yuriko Oshita, Sayuri Yuhara, Osamu Tamura, Nobuyoshi Morita   +5 more
doaj   +1 more source

Studies on 1,3-dipolar cycloadditions

, 2000
Centre of Advanced Studies on Natural Products, Department of Chemistry, University of Calcutta, 92 Acharya Prafulla Chandra Road, Calcutta-700 009, India E-mail : ab@cucc.ernet.in Manuscript received 2 November 2000 Studies on 1,3-dipolar ...
openaire   +2 more sources

Chemical Structure Data File For K. Zong's Thesis, "The 1,3-dipolar cycloaddition of nitrile oxides to vinylboronic esters and asymmetric approaches."

, 2020
This Structure Data File (SDfile) is associated with the thesis: Zong, K. "The 1,3-dipolar cycloaddition of nitrile oxides to vinylboronic esters and asymmetric approaches." and http://library.ua.edu/vwebv/holdingsInfo?bibId=851312 It is distributed by ...
Scalfani, Vincent F.
core   +1 more source

One-flask synthesis of 1,3,5-trisubstituted 1,2,4- triazoles from nitriles and hydrazonoyl chlorides via 1,3-dipolar cycloaddition

, 2014
[[abstract]]A new “one-flask” synthesis of 3,5-disubstituted 1,2,4-triazoles has successfully been developed to synthesize a series of 3,5-disubstituted 1,2,4-triazoles.
Wang, Li-Ya;Wang, Li-Ya;蔡建鈞;Tsai, Henry J;Lin, Hui-Yi;Lin, Hui-Yi;Ka, Kimiyoshi;Kaneko, Kimiyoshi;Che, Fen-Ying;Cheng, Fen-Ying;Sh, Hsin-Siao;Shih, Hsin-Siao;Won, Fung Fuh;Wong, Fung Fuh;Hu, Jiann-Jyh;Huang, Jiann-Jyh
core  

1,3-Dipolar cycloaddition reactions of tetra- and tripyridylporphyrins

, 2020
1,3-dipolarna cikloadicija jedna je od najvažnijih metoda u organskoj kemiji za sintezu peteročlanih prstena. Ovdje dolazi do reakcije između vrste zwitterionske rezonantne strukture, odnosno 1,3-dipola i spoja koji u svojoj strukturi ima višestruku vezu,
Vincetić, Magdalena
core   +1 more source

Copper(I)-catalyzed asymmetric 1,3-dipolar cycloaddition of 1,3-enynes and azomethine ylides. [PDF]

Nat Commun, 2023
Wang BR, Li YB, Zhang Q, Gao D, Tian P, Li Q, Yin L.   +6 more
europepmc   +1 more source

The Reactivity of Addends in the 1,3-Dipolar Cycloaddition Reaction

, 2020
The influence of donor-acceptor interactions and localisation energies on the reactivity of addends in the 1,3-dipolar cycloaddition reaction is examined.
Samuilov Y., Konovalov A.
core  

The 1,3-Dipolar Cycloaddition: From Conception to Quantum Chemical Design. [PDF]

Chem Asian J, 2022
Beutick SE, Vermeeren P, Hamlin TA.
europepmc   +1 more source

Organocatalytic asymmetric 1,3-dipolarand formal 1,3-dipolar cycloaddition reactions.

, 2011
207 p.This thesis consists of four chapters and demonstrates part of my research work on the application of organocatalysis, which has rapidly expanded over the past few decades, in asymmetric 1,3-dipolar and formal 1,3-dipolar cycloaddition reactions ...
Wang, Fei
core  

Novel Synthesis of Dihydroisoxazoles by p-TsOH-Participated 1,3-Dipolar Cycloaddition of Dipolarophiles withα-Nitroketones. [PDF]

Molecules, 2023
Yang C, Hu S, Pan X, Yang K, Zhang K, Liu Q, Xin X, Li J, Wang J, Yang X.   +9 more
europepmc   +1 more source