Results 131 to 140 of about 44,314 (270)

Highly Regioselective 1,3-Dipolar Cycloaddition of Nitrilimines and Thioaurones Towards Spiro-2-Pyrazolines: Synthesis, Characterization, and Mechanistic Study

Reactions
In this paper, we report a highly regioselective 1,3-dipolar cycloaddition (1,3-DC) reaction of nitrilimines with thioaurone derivatives that afforded the hitherto unreported spiropyrazolines. Spectroscopic and spectrometric data were utilized to confirm
Mohamed Bakhouch, Bouchra Es-Sounni, Ayoub Ouaddi, Khaoula Oudghiri, Mohammed Chalkha, Lahoucine Bahsis, Taoufiq Benali, Mohamed Bourass, Rabiaa Fdil, Mohamed Akhazzane, Mohamed El Yazidi   +10 more
doaj   +1 more source

Cristais líquidos termotrópicos calamíticos contendo o heterociclo [1,2,3]-triazol 1,4-dissubstituído [PDF]

, 2006
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas. Programa de Pós-Graduação em QuímicaA síntese e as propriedades térmicas de cinco séries homólogas de compostos calamíticos lineares e não lineares,
Santos, Deise Maria Pereira de Oliveira
core  

Cycloaddition Reactions

Journal of Synthetic Organic Chemistry, Japan, 1972
TAKEUCHI, Yoshito, TOMODA, Shuji
  +5 more sources

Recent advances in (4 + 3) cycloaddition of allenes

Green Synthesis and Catalysis
Allenes are a class of unsaturated compounds containing a propadiene structural moiety, exhibiting essential physiological, pharmacological, and various reactivities.
Yanyan Que, Wenli Lei, Yin Fang, Shuzhong He, Yang Chen   +4 more
doaj   +1 more source

Síntese regiosseletiva de cristais líquidos quirais contendo o heterociclo [1,2,3]-triazol [PDF]

, 2005
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas. Programa de Pós-Graduação em QuímicaO presente trabalho descreve a síntese de compostos quirais derivados do (S)-(-)-2-metil-1-butanol, contendo o ...
Conte, Gilmar
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Asymmetric Dearomatization via Cycloaddition Reaction

, 2016
This chapter covers recent advances in catalytic, asymmetric dearomatization reactions that proceed by cycloaddition. Despite its high stability, which renders it challenging to dearomatize via cycloaddition, Buchner and coworkers discovered the ...
Reisman, Sarah E., Kieffer, Madeleine E., Haoxuan Wang, Wang, Haoxuan, Sarah E. Reisman, Madeleine E. Kieffer   +5 more
core   +1 more source

Synthesis of Novel Spiro-Isoxazolidine Derivatives of 9α-Hydroxyparthenolide

Molbank
The 1,3-dipolar cycloaddition reaction was applied to 9α-hydroxyparthenolide, an important sesquiterpene component of Anvillea radiata that was extracted directly from plant material collected in Morocco.
Mohamed Zaki, Mohammed Loubidi, Sabine Berteina-Raboin   +2 more
doaj   +1 more source

Unveiling the Chemistry and Synthetic Potential of Catalytic Cycloaddition Reaction of Allenes: A Review. [PDF]

Molecules, 2023
Sikandar S, Zahoor AF, Ghaffar A, Anjum MN, Noreen R, Irfan A, Munir B, Kotwica-Mojzych K, Mojzych M.   +8 more
europepmc   +1 more source

Synthesis of Different Heterocyclic Compounds of Pharmaceutical Relevance

This thesis describes the synthesis of different cyclic imines and the exploration of their reactivity with cyclopropenones and 1,3-dipoles,as well as an investigation of the chemistry of the products.
Khan, Musharraf Naveed
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3-Aminoisothiazol S-oxides : Reactivity in Diels Alder Cycloaddition Reaction

, 2005
3-Aminoisothiazol S-oxides: Reactivity in Diels Alder Cycloaddition ReactionWe studied the Diels Alder cycloaddition reaction of 3-aminoisothiazole S oxides substituted or not at 4 position.
C. Monzani, A. Sala, F. Clerici
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