Results 211 to 220 of about 5,979 (235)

The continuous-flow cycloaddition of azomethine ylides to carbon nanotubes

Chemical Communications, 2011
This communication demonstrates a straightforward continuous-flow method for efficient exohedral functionalisation of carbon nanotubes which affords soluble samples in a much shorter time over conventional batch processing.
SALICE P, MAITY, PRASENJIT, ROSSI E, CAROFIGLIO, TOMMASO, MENNA, ENZO, MAGGINI, MICHELE   +5 more
openaire   +6 more sources

Enantioselective Copper‐Catalyzed [3+3] Cycloaddition of Azomethine Ylides with Azomethine Imines

Angewandte Chemie, 2013
Enantioselective copper-catalyzed [3+3] cycloaddition of azomethine ylides with azomethine ...
Hongchao Guo, Xiang-Ping Hu, Min Wang, Risong Na, Hao Yu, Zhen Li, Fu-Lin Zhu, Honglei Liu, Yumei Xiao, Yang Wu, Bo Wang, Lei Zhang, Hui Jiang   +12 more
openaire   +3 more sources

Azomethine, Carbonyl and Thiocarbonyl Ylides — Generation of Azomethine Ylides by Condensation of Aldehydes with N‐Substituted α‐Amino Esters [PDF]

ChemInform, 2004
AbstractFor Abstract see ChemInform Abstract in Full Text.
M. Nyerges, L. Toke
openaire   +1 more source

ChemInform Abstract: 1,7‐Electrocyclization of Non‐Stabilized Azomethine Ylides.

ChemInform, 1998
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.
Miklos Nyerges, Andrea Arany, Paul W. Groundwater   +2 more
openaire   +3 more sources

Recent Advances in Azomethine Ylide Chemistry

1989
Publisher Summary Azomethine ylides are planar molecules composed of one nitrogen and two terminal sp2 carbons. At most, four geometrical isomers are possible for these transient molecules. Their cycloadditions to olefin or acetylene dipolarophiles give rise to the formation of two sets of carbon-carbon bonds in a single step.
Otohiko Tsuge, Shuji Kanemasa
openaire   +2 more sources

Detection of an azomethine ylide and its conversion to aziridine

The Journal of Organic Chemistry, 1987
AbstractThe imine (I) is coupled with the trifluoromethanesulfonate (II) to produce the salt (III).
C. K. Mcclure, G. R. Martinez, Edwin Vedejs, S. Dax   +3 more
openaire   +3 more sources

Cycloaddition reactions of pyridinium and related azomethine ylides

The Journal of Organic Chemistry, 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.
Laura Precedo, Albert Padwa, David J. Austin, Lin Zhi   +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

1,3-Dipolar Cycloaddition Reactions of Porphyrins with Azomethine Ylides [PDF]

The Journal of Organic Chemistry, 2005
[reaction: see text] The behavior of porphyrins as dipolarophiles in 1,3-dipolar cycloadditions with azomethine ylides was studied. Depending on the nature of the substituent groups on the porphyrin macrocycles, the reaction can give monoadducts (chlorins) or bisadducts (isobacteriochlorins and bacteriochlorins). When a large excess of azomethine ylide
Maria G. P. M. S. Neves, Ana M. G. Silva, and Artur M. S. Silva, Augusto C. Tomé, José A. S. Cavaleiro   +4 more
openaire   +2 more sources

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