Results 71 to 80 of about 1,523 (159)

Asymmetric Isochalcogenourea-Catalyzed Synthesis of 3,4-Dihydropyrans via (4+2)-Cycloadditions of Ethyl But-3-ynoate with Michael Acceptors. [PDF]

Synlett
Hofer M, Piringer M, Scheucher A, Vogl LS, Waser M.   +4 more
europepmc   +1 more source

Solvent Effects on the Selectivity of Ambimodal Dipolar/Diels-Alder Cycloadditions: A Study Using Explicit Solvation Models. [PDF]

Chemphyschem
Matsubuchi H, Hayashi D, Okamoto D, Noguchi A, Nakagawa S, Takayanagi T, Murakami T.   +6 more
europepmc   +1 more source

Influence of the Nature of Group 15 Element on [Au^I]-C≡E/Azide 1,3-Dipolar Cycloaddition Reaction. [PDF]

Inorg Chem
González-Pinardo D, Fernández I.
europepmc   +1 more source

Studies on Indolizines and Azaindolizines. I. The 1, 3-Dipolar Cycloaddition of Acetylenic Compounds to Pyridazinium Ylides

Chemical and Pharmaceutical Bulletin, 1973
MASAKI, YUKIO, OTSUKA, HIDEO, NAKAYAMA, YOSHIE, HIOKI, MASAHARU   +3 more
openaire   +2 more sources

A Remarkable Selectivity Observed in Hetero-Diels-Alder Reactions of Levoglucosenone (LGO) with Thiochalcones: An Experimental and Computational Study. [PDF]

Molecules
Mlostoń G, Urbaniak K, Palusiak M, Würthwein EU, Reissig HU, Witczak ZJ.   +5 more
europepmc   +1 more source

Tunable Endo/Exo Selectivity in Direct Catalytic Asymmetric 1,3-Dipolar Cycloadditions with Polyfunctional Lewis Acid / Azolium-Aryloxide Catalysts. [PDF]

Angew Chem Int Ed Engl
Bürstner A, Becker PM, Allgaier A, Pfitzer L, Wanner DM, Dollinger J, Willig F, Herrmann J, Miskov-Pajic V, Hans AC, Frey W, van Slageren J, Kästner J, Peters R.   +13 more
europepmc   +1 more source

Dimerisation of aryl-substituted bicyclobutanes (BCBs): revealing a new mode of 1,3-dipolar background reactivity. [PDF]

Chem Sci
George M, Knyazev DA, Swiatek K, von Köller HF, Werz DB.   +4 more
europepmc   +1 more source

Copper- and Silver-Catalyzed Reactions of Active Methylene Isocyanides: Facile Access to Highly Substituted Five- and Six-Membered Heterocycles. [PDF]

Chemistry
George J, Oh K.
europepmc   +1 more source

Ambident reactivity of enolizable 5-mercapto-1<i>H</i>-tetrazoles in trapping reactions with in situ-generated thiocarbonyl <i>S</i>-methanides derived from sterically crowded cycloaliphatic thioketones. [PDF]

Beilstein J Org Chem
Mlostoń G, Celeda M, Palusiak M, Heimgartner H, Denel-Bobrowska M, Olejniczak AB.   +5 more
europepmc   +1 more source

Square-Planar Ruthenium Alkylidyne Complexes Undergo Stepwise Rather Than Concerted [2 + 2] Cycloadditions with Alkynes. [PDF]

Angew Chem Int Ed Engl
Cui M, Leutzsch M, Auer AA, Fürstner A.
europepmc   +1 more source