Results 221 to 230 of about 25,436 (256)

ChemInform Abstract: Regio‐ and Stereoselectivity of Cycloadditions of Trifluoromethylated Azomethine Ylide.

ChemInform, 1994
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Masaki Ohsuga, Sigeaki Nagatani, Kiyoshi Tanaka, Keiryo Mitsuhashi   +3 more
openaire   +3 more sources

Cyanoalkylamines as a Source of Acyclic and Heterocyclic Azomethine Ylides

Synlett, 1993
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Timothy Gallagher, Robert W. Shaw, David Lathbury   +2 more
openaire   +3 more sources

Total Synthesis of Proposed Structure of Yuremamine and All Diastereomers Using [3+2]-Cycloaddition of Platinum-Containing Azomethine Ylide.

Chemistry - An Asian Journal, 2015
Total synthesis of the proposed structure of yuremamine has been achieved for the first time based on the intermolecular [3+2]-cycloaddition reaction of the platinum-containing azomethine ylide.
Tomoya Ohyama, M. Uchida, H. Kusama, N. Iwasawa   +3 more
semanticscholar   +1 more source

ChemInform Abstract: Azomethine Ylide Generation via the Dipole Cascade.

ChemInform, 1992
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
D. C. Dean, Lin Zhi, William R. Nadler, Albert Padwa, Donald L. Hertzog   +4 more
openaire   +3 more sources

One‐pot Regioselective Synthesis of Novel 1‐N‐Methyl‐spiro[2,3′]oxindole‐spiro[3,3″]‐1″‐N‐arylpyrrolidine‐2″,5″‐dione‐4‐arylpyrrolidines through Multicomponent 1,3‐Dipolar Cycloaddition Reaction of Azomethine Ylide

, 2015
An atom economic and facile synthesis of novel dispiro–oxindole–pyrrolidines has been achieved via a three-component tandem cycloaddition of azomethine ylide generated in situ from isatin and sarcosine by decarboxylative condensation with N-aryl-3 ...
A. Kaur, M. Kaur, Baldev Singh
semanticscholar   +1 more source

ChemInform Abstract: TRIMETHYLAMINE N‐OXIDE AS A PRECURSOR OF AZOMETHINE YLIDES

Chemischer Informationsdienst, 1983
AbstractDas aus dem N‐Oxid (I) mit Base generierte, nicht stabilisierte Azomethin‐Y1id (II) reagiert mit Olefinen (III) zu den N‐Methyl‐pyrrolidinen (IV).
G. Beugelmans, G. Roussi, G. Negron
openaire   +3 more sources

Catalytic asymmetric formal [3+3] cycloaddition of an azomethine ylide with 3-indolylmethanol: enantioselective construction of a six-membered piperidine framework.

Chemistry, 2014
A catalytic asymmetric formal [3+3] cycloaddition of 3-indolylmethanol and an in situ-generated azomethine ylide has been established to construct a chiral six-membered piperidine framework with two stereogenic centers.
F. Shi, Ren‐Yi Zhu, W. Dai, Cong‐Shuai Wang, S. Tu   +4 more
semanticscholar   +1 more source

Photooxygenation of aziridines and some potential azomethine ylides

The Journal of Organic Chemistry, 1979
Sensitized photooxygenations of a few bicyclic aziridines and some potential azomethine ylides have been investigated. The photooxygenation of 1-cyclohexyl-6-(cyclohexylimino)-1a-phenylindano(1,2-b)aziridine (7) gave a 51% yield of 2-cyclohexyl-3-hydroxy-3-phenylphthalimidine (12). The photooxygenation of endo-2,4,6-triphenyl-1,3-diazabicyclo(3.1.0)hex-
Manapurathu V. George, V. Bhat
openaire   +2 more sources

Aromatic C=C bonds as dipolarophiles: facile reactions of uncomplexed electron-deficient benzene derivatives and other aromatic rings with a non-stabilized azomethine ylide.

Chemistry, 2013
Non-stabilized azomethine ylide 4a reacts smoothly at room temperature with a variety of uncomplexed aromatic heterocycles and carbocycles on the condition that the ring contains at least one or two electron-withdrawing substituents, respectively ...
Sunyoung Lee, S. Diab, P. Queval, M. Sebban, I. Chataigner, S. Piettre   +5 more
semanticscholar   +1 more source

1,3-Dipolar cycloaddition reactions of phthalic anhydrides with an azomethine ylide

, 2015
A series of phthalic anhydrides underwent a 1,3-dipolar cycloaddition reaction with N-benzylazomethine ylide, formed in situ from N-(methoxymethyl)-N-(trimethylsilylmethyl)benzylamine and a catalytic amount of trifluoroacetic acid, to produce unstable ...
Hugo Santos, Amy Distiller, Asha M. D'souza, Quentin Arnoux, J. White, A. G. Meyer, J. H. Ryan   +6 more
semanticscholar   +1 more source