Results 131 to 140 of about 28,644 (231)

Atroposelective synthesis of axially chiral naphthylpyrroles by a catalytic asymmetric 1,3-dipolar cycloaddition/aromatization sequence [PDF]

A straightforward methodology for the enantioselective preparation of axially chiral 2-naphthylpyrroles has been developed. This protocol is based on a CuI/Fesulphos-catalyzed highly enantioselective 1,3-dipolar cycloaddition of an azomethine ylide ...
Adrio Sevilla, Francisco Javier, Carretero Gonzálvez, Juan Carlos, Gallent Ros, Enrique, Maclean Gariboldi, Ian, Molina, Alba, Orozco, Oscar, Rodríguez Garrido, Nuria   +6 more
core   +1 more source

Intermolecular cycloaddition of nonstabilized azomethine ylides generated from 1,3-thiazolidine-4-carboxylic acids: synthesis of 5,7a-dihydro-1H,3H-pyrrolo[1,2-c]thiazoles [PDF]

, 2006
Ana L. Cardoso, Agnieszka Kaczor, Artur M. S. Silva, Rui Fausto, Teresa M. V. D. Pinho e Melo, Α. Μ. d’A. Rocha Gonsalves   +5 more
openalex   +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

The [3+2] Intramolecular Cycloaddition Reaction of Azomethine Ylides Generated from Benzylic N-Oxides

, 1990
Georges Roussi
openalex   +1 more source

Internal Azomethine Ylide Cycloaddition Methodology for Access to the Substitution Pattern of Aziridinomitosene A [PDF]

, 2007
Drew R. Bobeck, Don L. Warner, Edwin Vedējs   +2 more
openalex   +1 more source

1,3-Dipolar Cycloadditoin Reaction of 2-[(Trimethylsilylmethylamino)(methylthio)]methylene-1,3-indandione: Synthetic Equivalent of Cyclic Dicarbonyl Alkylidene-azomethine Ylide as a Novel 1,3-Dipolar Reagent

, 1995
Yoshinori Tominaga, Satoshi Takada, Shinya Kahra   +2 more
openalex   +1 more source

A Versatile Cascade of Intramolecular Vilsmeier−Haack and Azomethine Ylide 1,3-Dipolar Cycloaddition toward Tricyclic Cores of Alkaloids [PDF]

, 2008
François Lévesque, Guillaume Bélanger
openalex   +1 more source

Cycloaddition of New N-Unsubstituted Azomethine Ylides Generated from N-[(Trimethylsilyl)methyl]thiocarbamates, Synthetic Equivalents of Non-stabilized Alkoxy- or Alkylthionitrile Ylides

, 2001
Otohiko Tsuge, Taizo Hatta, Masanori Shinozuka, Hideki Tashiro   +3 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

An efficient strategy for the construction of X-azatricyclo[m.n.0.0a,b]alkanes by intramolecular [3+2]cyclo­addition of nonstabilised cyclic azomethine ylides

, 2001
Ganesh Pandey, Akhila K. Sahoo, Trusar D. Bagul, Smita R. Gadre   +3 more
openalex   +2 more sources