Results 131 to 140 of about 1,577 (174)
Some of the next articles are maybe not open access.
Transition Metal Complexation in 1,3-Dipolar Cycloadditions
HETEROCYCLES, 2003AbstractFor Abstract see ChemInform Abstract in Full Text.
BROGGINI, GIANLUIGI +3 more
openaire +3 more sources
Dipolar Cycloaddition Reactions of Nitrilimines
Australian Journal of Chemistry, 1998A series of ?-substituted a-methylidene-?-butyrolactone derivatives underwent regiospecific 1,3-dipolar cycloaddition with N -methyl- C -phenylnitrilimine. These reactions proceeded regiospecifically and with high diastereoselectivity, generally favouring the anti diastereomer as determined by n.m.r.
Dunstan, J. +5 more
openaire +2 more sources
Dipolar Cycloadditions of Nitrones in Aqueous Media
HETEROCYCLES, 20161,3-Dipolar cycloadditions of nitrones in aqueous media have been recently exploited as a non-conventional protocol in the synthesis of the fully- or partly-saturated isoxazole ring. Water as the reaction medium can affect positively both cycloaddition rates and yields, while the large array of latent functionalities displayed by the cycloadducts is of
openaire +1 more source
Concertedness of 1,3-dipolar cycloadditions
Journal of Chemical Education, 1984The 1,3-dipolar cycloaddition is the union of a 1,3-dipole with a multiple bond system (a dipolarophile) to form a five-membered ring; the process is regarded as one of the most general methods for the synthesis of five-membered heterocycles.
openaire +1 more source
Asymmetric 1,3-Dipolar Cycloaddition Reactions
Chemical Reviews, 1998Kurt V., Gothelf, Karl Anker, Jørgensen
openaire +2 more sources