Results 201 to 210 of about 5,979 (235)

ChemInform Abstract: THE CHEMISTRY OF AN ISOLABLE AZOMETHINE YLIDE

Chemischer Informationsdienst, 1984
AbstractDas Nitron (I) reagiert mit den Acetylenen (II) zu den Isoxazolinen (III).
Rolf Huisgen, Karl Niklas
openaire   +2 more sources

A dehydrogenation route to azomethine ylides and isoindoles

Journal of the Chemical Society, Perkin Transactions 1, 1989
AbstractDehydrogenation of the compounds (I) leads to azomethine ylides which are trapped by the imide (II).
Frances Heaney, Ronald Grigg
openaire   +3 more sources

Intramolecular Dipolar Cycloaddition Reactions of Azomethine Ylides

Chemical Reviews, 2005
AbstractFor Abstract see ChemInform Abstract in Full Text.
Iain Coldham, Richard Hufton
openaire   +4 more sources

The azomethine ylide strategy for β-lactam synthesis. An evaluation of alternative pathways for azomethine ylide generation

Journal of the Chemical Society, Perkin Transactions 1, 2001
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.
Brown, D, Martel, SR, Wisedale, R, Charmant, JPH, Hales, NJ, Fishwick, CWG, Gallagher, TC   +6 more
openaire   +4 more sources

Reaction of Functionalized Azomethine Ylides with Olefinic Dipolarophiles

HETEROCYCLES, 2006
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Keisuke Kawashima, Michihiko Noguchi, Akikazu Kahehi   +2 more
openaire   +3 more sources

Azomethine, Carbonyl and Thiocarbonyl Ylides: Generation of Azomethine Ylides from Carbenes and Carbenoids

ChemInform, 2004
AbstractFor Abstract see ChemInform Abstract in Full Text.
openaire   +2 more sources

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   +4 more sources

Enantioselective Cycloadditions of Azomethine Ylides

2008
The asymmetric 1,3-DCR of azomethine ylides, which is generated from the corresponding imino ester and alkenes, is one of the most fascinating transformations because the configuration of the four new stereogenic centers of the finally obtained proline can be absolutely established in only one step with total atom economy.
José M. Sansano, Carmen Nájera
openaire   +2 more sources

ChemInform Abstract: Synthesis of Spiropyrrolidines and Spiropyrrolizidines from Azomethine Ylides. [PDF]

ChemInform, 2014
AbstractAsymmetric cross‐conjugated unsaturated ketones (VII) are used as dipolarophiles in 1,3‐dipolar cycloaddition reactions for the first time.
I. N. Klochkova, M. P. Shchekina, A. A. Aniskov   +2 more
openaire   +2 more sources

ChemInform Abstract: N‐Metalated Azomethine Ylides

ChemInform, 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.
Shuji Kanemasa, Otohiko Tsuge
openaire   +2 more sources