Results 101 to 110 of about 13,198 (167)

Synthesis of bioactive fluoropyrrolidines via copper(i)-catalysed asymmetric 1,3-dipolar cycloaddition of azomethine ylides. [PDF]

Chem Sci, 2022
Xu X, Bao L, Ran L, Yang Z, Yan D, Wang CJ, Teng H.   +6 more
europepmc   +1 more source

Intramolecular Cycloaddition Azomethine Ylides and α-(Trifluoromethyl)styrenes as Dipolarophiles

, 2019
The synthesis of polycyclic fluorinated tertiary amines has been accomplished by means of an intramolecular azomethine ylide cycloaddition with fluorinated dipolarophiles. Thus, tri- and tetracyclic fused pyrrolidines bearing a quaternary trifluoromethyl
Sánchez Merino, Anabel, Gavina, Daniel, Anabel Sánchez Merino, Daniel Gaviña, Delgado, Alejandro, Sánchez Roselló, María, Rabasa Alcañiz, Fernando, Carlos del Pozo, María Sánchez Roselló, del Pozo Losada, Carlos, Fernando Rabasa Alcañiz, Alejandro Delgado   +11 more
core   +1 more source

Auxiliary controlled intramolecular 1,3-dipolar cycloaddition reactions of chiral azomethine ylides

, 2000
Intramolecular 1,3-dipolar cycloaddition reactions of chiral azomethine ylides obtained by thermal ring opening of chiral aziridines 7a, b and 8a, b are investigated.
Dogan, O, Garner, PP
core   +1 more source

Glycine-Based [3+2] Cycloaddition for the Synthesis of Pyrrolidine-Containing Polycyclic Compounds

Molecules
The synthesis of pyrrolidine compounds with biological interest is an active research topic. Glycine could be a versatile starting material for making pyrrolidine derivatives.
Tieli Zhou, Xiaofeng Zhang, Desheng Zhan, Wei Zhang   +3 more
doaj   +1 more source

The Chemistry of Azomethine Ylides Developed in the Institute

The research on azomethine ylide 1,3-dipoles, developed in the last five years in the Institute of Advanced Material Study, Kyushu University, is briefly reviewed.
カネマサ, シュウジ, Kanemasa, Shuji, 金政, 修司   +2 more
core  

Recent Developments in Azomethine Ylide-Initiated Double Cycloadditions

Molecules
Azomethine ylides (AMYs) have a nitrogen–carbon double bond and an electron lone pair on the nitrogen atom. They are essential 1,3-dipoles for [3+2] cycloadditions in the synthesis of pyrrolidine-containing heterocycles.
Tieli Zhou, Xiaofeng Zhang, Yan Jan Sheng, Desheng Zhan, Wei Zhang   +4 more
doaj   +1 more source

Addition of azomethine ylides: fulleropyrrolidines

, 2002
Among the many reactions that were successfully developed, the 1,3-dipolar cycloaddition of azomethine ylides provides a valuable synthetic procedure for the preparation of functionalized fullerenes.
MENNA, ENZO, Michele Maggini, MAGGINI, MICHELE, Enzo Menna   +3 more
core   +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

Phototransformations of C-Benzoylaziridines. Dipolarophilic trapping of photogenerated azomethine ylides

, 1996
The phototransformations of a few 2,3-diaroylaziridines and 2-aryl-3-aroylaziridines have been studied by steady-state photolysis and product analysis.
Gopidas, K. R., Ramaiah, D., Rath, N. P., Muneer, M., Das, P. K., George, M. V., D. Ramaiah, K. R. Gopidas, M. V. George, M. Muneer, P. K. Das, N. P. Rath   +11 more
core   +1 more source

Current trends towards the synthesis of bioactive heterocycles and natural Products Using 1,3-Dipolar Cycloadditions (1,3-DC) with Azomethine Ylides

, 2019
This review summarizes the trends in the formation of complex or not so complex heterocyclic structures through 1,3-dipolar cy­cloadditions of azomethine ylides.
Sansano, José M., Gracia Retamosa, María de, Döndas, H. Ali   +2 more
core   +1 more source