Results 181 to 190 of about 25,436 (256)

Synthesis and Use of a Trifluoromethylated Azomethine Ylide Precursor

The Journal of Organic Chemistry, 2012
AbstractA variety of trifluoromethylated heterocyclic building blocks is prepared using the readily available title compound (I).
Duncan L. Browne, Gael Tran, Steven V. Ley, Robin Meier, Lawrence Harris   +4 more
openaire   +5 more sources

Five-Step Total Synthesis of (±)-Aspidospermidine by a Lactam Strategy via an Azomethine Ylide.

Organic Letters, 2021
A five-step total synthesis of (±)-aspidospermidine (1) based on a lactam strategy is reported. Our synthesis features an iridium-catalyzed reductive Michael addition/[3+2] cycloaddition cascade to give a tricyclic ketone intermediate from a simple ...
Seiya Katahara, Yasukazu Sugiyama, Minako Yamane, Yukinori Komiya, Takaaki Sato, N. Chida   +5 more
semanticscholar   +1 more source

Electrochemical Generation of a Nonstabilized Azomethine Ylide: Access to Substituted N-Heterocycles.

Journal of Organic Chemistry, 2021
Azomethine ylides are fascinating 1,3-dipoles for [3 + 2] cycloaddition reactions toward the construction of N-heterocycles. Herein, an efficient and environmentally benign electrochemical approach for the generation of a nonstabilized azomethine ylide ...
Rakesh Kumar, Prabal Banerjee
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, Chun-Jiang Wang   +2 more
openaire   +2 more sources

ChemInform Abstract: Fused Aziridines as Sources of Azomethine Ylides [PDF]

ChemInform, 2012
AbstractReview: 40 refs.
Alexander F. Khlebnikov, Mikhail S. Novikov   +1 more
openaire   +2 more sources

Addition of Azomethine Ylides: Fulleropyrrolidines

ChemInform, 2002
AbstractFor Abstract see ChemInform Abstract in Full Text.
MAGGINI, MICHELE, MENNA, ENZO
openaire   +3 more sources

Azomethine Ylides in Organic Synthesis

Current Organic Chemistry, 2003
AbstractFor Abstract see ChemInform Abstract in Full Text.
Carmen Nájera, José M. Sansano
openaire   +3 more sources

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   +3 more sources

ChemInform Abstract: Oxazoline Route to Azomethine Ylides.

ChemInform, 1986
AbstractThe 4‐substituted oxazoles (I) undergo methylation and reduction to give the corresponding unstable N‐methyl‐4‐oxazolines, which are trapped in situ with the acetylene dicarboxylate (III) to afford the adducts (IV).
Janet Wisniewski Grissom, Edwin Vedejs
openaire   +3 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