Results 131 to 140 of about 8,159 (220)

1,3-dipolar cycloaddition reactions of some azomethine imines and azomethine ylides

, 2005
In this work, 1,3-dipolar cycloaddition reactions of three azomethine imines(betaines) and, three azomethine ylides, which are the new in the literature, to thedifferent dipolarophiles such as; dimethyl acetylene dicarboxylate, diethylacetylenedicarboxylate, vinyl acetate, diphenyl acetylene, phenylacetylene andvinylene carbonate are described.
openaire   +3 more sources

Recent advances of azomethine ylides for the synthesis of natural and synthetic bioactive pyrrolidines and spiropyrrolidines. [PDF]

RSC Adv
Paira P, Chakrabarty R, Deb Barman P, Singh B, Paira R.   +4 more
europepmc   +1 more source

Azomethine ylide mediated inversion of configuration of quaternary imidazoline carbon: converting trans- to its cis- imidazolines. [PDF]

Tetrahedron Lett, 2011
Qu K, Fisk JS, Tepe JJ.
europepmc   +1 more source

Spirobarbiturates with a pyrrolizidine moiety: synthesis, structure and biological evaluation. [PDF]

Beilstein J Org Chem
Puzyrkov AA, Drachuk AS, Popova EA, Stepakov AV, Boitsov VM.   +4 more
europepmc   +1 more source

Internal azomethine ylide cycloaddition methodology for access to the substitution pattern of aziridinomitosene A. [PDF]

J Org Chem, 2007
Bobeck DR, Warner DL, Vedejs E.
europepmc   +1 more source

[3 + 2] Cycloadditions of Tertiary Amine <i>N</i>‑Oxides and Azoarenes as a Route to Substituted 1,2,4-Triazolidines. [PDF]

ACS Org Inorg Au
Frankos NA, Nair MS, Lane AM, Glista MM, Graber JK, Black AEF, Newman TGLX, Griffin ER, Luca KM, Chartier EJ, Heisler DB, Montgomery TD.   +11 more
europepmc   +1 more source

Preparation of 1,4-Diamines by Enantio- and Diastereoselective Cu-Josiphos-Catalyzed Reductive Couplings of Azatrienes and Imines: Regiodivergence Enabled by Catalyst Structure and Reagent Tailoring. [PDF]

J Am Chem Soc
Zhou P, Zhu J, Zhang A, Nuomin H, Malcolmson SJ.   +4 more
europepmc   +1 more source

Recent developments in the organocatalytic asymmetric cycloaddition/annulation reactions involving indolylmethanols. [PDF]

RSC Adv
Patel A, Harshit, Iype E, Kumar I.
europepmc   +1 more source

Ultrasound-assisted, ZnBr2-catalyzed regio- and stereoselective synthesis of novel 3,3′-dispiropyrrolidine bisoxindole derivatives via 1,3-dipolar cycloaddition reaction of an azomethine ylide

ARKIVOC, 2017
Mostafa Kiamehr, Mohammad R. Khodabakhshi, Firouz M. Moghaddam, Alexander Villinger, Peter Langer   +4 more
doaj   +1 more source

Fused-Linked and Spiro-Linked N-Containing Heterocycles. [PDF]

Int J Mol Sci
Moskalik MY, Shainyan BA.
europepmc   +1 more source