Results 81 to 90 of about 2,875 (189)

1,3‐Dipolar Cycloadditions of Stabilized Azomethine Ylides and Electrophilic Alkenes Mediated by a Recyclable TSIL·AgOAc Catalyst [PDF]

, 2019
David Lledó, Guillermo Grindlay, José M. Sansano   +2 more
openalex   +1 more source

A Regioselective Multicomponent Approach for the Synthesis of Novel 2-Acetyl-4-phenylquinoline Designed Monospiro-Pyrrolidine and Thiapyrrolizidine Hybrids

Heteroatom Chemistry
A convenient approach for the synthesis of 2-acetyl-4-phenylquinoline designed monospiro-pyrrolidine/thiapyrrolizidine hybrids has been achieved via a 1,3-dipolar cycloaddition reaction of various azomethine ylides derived from isatin/acenaphthylene-1,2 ...
Satheeshkumar Rajendran, Arul Murugesan, Shankar Ramasamy   +2 more
doaj   +1 more source

The Synthesis of Spirooxindole Pyrrolidines via an Asymmetric Azomethine Ylide [1,3]-Dipolar Cycloaddition Reaction

, 2002
Robert M. Williams, Paul R. Sebahar
openalex   +1 more source

Catalyst-Free [3+2] Cycloaddition of Electron-Deficient Alkynes and o-Hydroxyaryl Azomethine Ylides in Water. [PDF]

ACS Omega, 2020
Zhu J, Su W, Xiong C, Bai R, Zhou Q, Chen M.   +5 more
europepmc   +1 more source

Decarboxylation-Driven Double Annulations: Innovative Multi-Component Reaction Pathways

Molecules
A concerted five-component reaction strategy has been developed, featuring double [3+2] cycloadditions utilizing aspartic acid. This approach provides valuable insights into mechanistic pathways, allowing for the distinction between concerted and ...
Desheng Zhan, Gang Yang, Tieli Zhou, Sashirekha Nallapati, Xiaofeng Zhang   +4 more
doaj   +1 more source

Regio- and stereoselectivity of the 1,3-dipolar cycloaddition of azomethine ylides to (E)-3-(2-oxo-2-(pyren-1-yl)ethylidene)indolin-2-ones: A combined experimental and theoretical study

, 2022
Essam M. Hussein, Ziad Moussa, Uttam Pal, Reem I. Alsantali, Abdullah Yahya Abdullah Alzahrani, Rami J. Obaid, Fawaz M. Alzahrani, Munirah M. Al‐Rooqi, Meshari A. Alsharif, Nizar El Guesmi, Rabab S. Jassas, M. Shaheer Malik, Hatem M. Altass, Samir Kumar Pal, Tanusri Saha Dasgupta, Saleh A. Ahmed   +15 more
openalex   +1 more source

Dearomative [3 + 2] cycloaddition reaction of nitrobenzothiophenes with nonstabilized azomethine ylides. [PDF]

RSC Adv, 2020
Wang KK, Xie YX, Li YL, Chen R, Wang ZY.
europepmc   +1 more source

Utilizing MEDT analysis of [3 + 2] cycloaddition reaction: x-ray crystallography of spirooxindole linked with thiophene/furan heterocycles and triazole framework

BMC Chemistry
Hybridization of spirooxindole with different pharmacophores such as triazole and heterocycle such as thiophene and furan moiety was achieved by the [3 + 2] cycloaddition (32CA) reaction approach. Structural investigations of the compounds 4a and 4b were
Abdulmajeed Abdullah Alayyaf, M. Ali, Moayad Abdullah Alwehaibi, Muhanna K. Al-Muhanna, Saied M. Soliman, Mar Ríos-Gutiérrez, Matti Haukka, Assem Barakat   +7 more
doaj   +1 more source

α-Aminoester-Derived Imidazoles by 1,5-Electrocyclization of Azavinyl Azomethine Ylides

, 2009
Orazio A. Attanasi, Emilia Caselli, Paolo Davoli, Gianfranco Favi, Fabio Mantellini, Claudia Ori, Fabio Prati   +6 more
openalex   +2 more sources

Frontispiece: Catalytic Enantioselective [3+2] Cycloaddition of N‐Metalated Azomethine Ylides [PDF]

, 2023
Sundaravel Vivek Kumar, Patrick J. Guiry
openalex   +1 more source