Results 111 to 120 of about 16,682 (222)

Cyaphide-Azide 1,3-Dipolar Cycloaddition Reactions: Scope and Applicability. [PDF]

open access: yesChemistry, 2023
Yang ES   +4 more
europepmc   +1 more source

Stereoselective intramolecular azide 1,3-dipolar cycloaddition [PDF]

open access: yes, 2003
Ethyl (E)-7-azido-6-[bis(tert-butoxycarbonyl)amino]-2-heptenoate undergoes a stereoselective intramolecular azide 1,3-dipolar cycloaddition leading to a stable triazoline.
Kokotos, G., Markidis, T., Mikros, E.
core  

Síntese de sais de isotiourônio e sua versatilidade em reações de acetilação e na preparação de heterociclos multifuncionalizados [PDF]

open access: yes, 2011
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Química, Florianópolis, 2011O presente trabalho foi desenvolvido visando à obtenção de novos compostos orgânicos ...
Ferreira, Misael
core  

Novas metodologias sintéticas utilizando reator de micro-ondas fundamentadas nos princípios da química verde (azidas alílicas e reações de cicloadição) [PDF]

open access: yes, 2010
TCC (graduação) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Curso de Química.Este trabalho objetiva a preparação de compostos nitrogenados multifuncionais e de sistemas alílicos contendo o grupo azido, os quais são
Monteiro, Gustavo Claro
core  

Green Synthesis of Heterocyclic Systems by 1,3-Dipolar Cycloaddition-Initiated Transformations [PDF]

open access: yes, 2019
Diastereomerically enriched heterocyclic compounds play a significant role in medicinal chemistry and natural products. 1,3-Dipolar cycloaddition-initiated pot, atom and step economic ( PASE) synthesis is a powerful strategy for the construction of ...
Zhang, Xiaofeng
core  

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

open access: yesReactions
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   +5 more
doaj   +1 more source

Studies on 1,3-dipolar cycloadditions

open access: yes, 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

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

open access: yesNat Commun, 2023
Wang BR   +6 more
europepmc   +1 more source

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