Results 171 to 180 of about 31,299 (256)

Azomethine Ylide Based Processes

, 2012
D. MacMillan, A. Watson
semanticscholar   +2 more sources

Stereo- and Regioselective 1,3-Dipolar Cycloaddition of the Stable Ninhydrin-Derived Azomethine Ylide to Cyclopropenes: Trapping of Unstable Cyclopropene Dipolarophiles.

Journal of Organic Chemistry, 2019
A stereo- and regioselective 1,3-dipolar cycloaddition of the stable ninhydrin-derived azomethine ylide [2-(3,4-dihydro-2 H-pyrrolium-1-yl)-1-oxo-1 H-inden-3-olate, DHPO] to differently substituted cyclopropenes has been established.
A. Filatov, Siqi Wang, O. Khoroshilova, S. Lozovskiy, A. Larina, V. Boitsov, A. Stepakov   +6 more
semanticscholar   +1 more source

1,7‐Electrocyclizations of Stabilized Azomethine Ylides.

ChemInform, 2003
AbstractFor Abstract see ChemInform Abstract in Full Text.
Nyerges, Miklos, Viranyi, Andrea, Pinter, Aron, Toke, Laszlo   +3 more
openaire   +1 more source

Photoinduced Nonstabilized Azomethine Ylide Formation for the Preparation of Fluorine Containing Pyrrolidines.

Journal of Organic Chemistry, 2019
A mild and reproducible method for the formation of a nonstabilized azomethine ylide was developed by photoinduced reaction catalyzed with eosin Y under green light irradiation. Resulting 1,3-dipole was trapped with fluoroalkenes, fluoroalkylated alkenes,
Thibault Thierry, Cyril Lebargy, E. Pfund, T. Lequeux   +3 more
semanticscholar   +1 more source

Synergistic Catalysis with Azomethine Ylides

Chinese Journal of Chemistry, 2020
AbstractAzomethine ylides are useful intermediates for the rapid construction of chiral N‐containing compounds. However, its synthetic potential has not been fully developed due to the limited reaction models. In combination with synergistic catalysis and azomethine ylide chemistry, we have developed several types of novel catalytic system including Cu/
Liang Wei, Chun‐Jiang Wang
openaire   +1 more source

Synthesis of heterocycle appended spiro(oxindole-3,2’-pyrrolidine) derivatives from heterocyclic ylidenes and azomethine ylide through 1,3-dipolar cycloaddition reactions

Synthetic Communications, 2019
Spiro(oxindole-3,2’-pyrrolidine) is a privileged scaffold displaying a wide spectrum of biological activities. A series of these molecules containing heterocyclic rings attached to the pyrrolidine unit has been synthesized utilizing the classical 1,3 ...
S. Vidya, K. Priya, Devi Velayudhan Jayasree, A. Deepthi, P. G. Biju   +4 more
semanticscholar   +1 more source

Oxazoline route to azomethine ylides

Journal of the American Chemical Society, 1986
Etude de la generation de N-alhylidene ammonioethylenolates a partir d'oxazolines-4; les betaines sont piegees par cycloadditions avec le butynedioate de dimethyle ou l'acrylate de ...
Edwin. Vedejs, Janet Wisniewski. Grissom
openaire   +1 more source

Cross 1,3-dipolar cycloadditions of C,N-cyclic azomethine imines with an N-benzyl azomethine ylide: facile access to fused tricyclic 1,2,4-hexahydrotriazines.

Organic and biomolecular chemistry, 2019
A cross 1,3-dipolar cycloaddition of two different ylides between C,N-cyclic azomethine imines with an in situ-generated nonstabilized azomethine ylide from an N-benzyl precursor was realized.
Kaikai Wang, Yanli Li, Zhanyong Wang, Menghui Hu, Ting-ting Qiu, Bao-Ku Zhu   +5 more
semanticscholar   +1 more source

Azomethine Ylides

ChemInform, 2005
AbstractFor Abstract see ChemInform Abstract in Full Text.
openaire   +1 more source

Azomethine Ylides in Organic Synthesis

Current Organic Chemistry, 2003
AbstractFor Abstract see ChemInform Abstract in Full Text.
Carmen Najera, Jose M. Sansano
openaire   +1 more source