Results 1 to 10 of about 7,931 (260)

Transition metal catalyzed 1-3-dipolar cycloaddition of carbethoxycarbene to acrylonitrile [PDF]

open access: yesTetrahedron Letters, 1974
Paulissen, R.   +3 more
openaire   +2 more sources

Relative Rates of Metal-Free Azide-Alkyne Cycloadditions: Tunability over 3 Orders of Magnitude. [PDF]

open access: yes, 2019
The thermal (3 + 2) dipolar azide-alkyne cycloaddition, proceeding without copper or strained alkynes, is an underutilized ligation with potential applications in materials, bioorganic, and synthetic chemistry.
Braslau, Rebecca   +6 more
core  

1, 3-Dipolar Cycloaddition Reaction of Aziridinedicarboximide

open access: yesChemical and Pharmaceutical Bulletin, 1968
SADAO OIDA, EIJI OHKI
openaire   +2 more sources

1, 3-Dipolar Cycloaddition of Nitrones to Enamines

open access: yesNippon kagaku zassi, 1971
Otohiko TSUGE   +2 more
openaire   +2 more sources

3,3,4,4,5,5-Hexamethyl-1,2-bis(methylene)cyclopentane [PDF]

open access: yes, 1991
Baran, Janusz   +2 more
core   +1 more source

Synthesis of Pyrazolidines (5-membered heterocyclic rings) through 1, 3- dipolar cycloadditions of azomethine imines

open access: yesIOSR Journal of Applied Chemistry, 2012
Dipolar cycloadditions of azomethine imines, formed in situ from aldehydes and hydrazines with electron deficient dipolarophiles produced pyrazolidines. Monosubstituted dipolarophiles afford principally 4substituted pyrazolidines.
openaire   +1 more source

Cycloaddition reactions of nitrosoalkenes, azoalkenes and nitrile oxides mediated by hydrotalcite [PDF]

open access: yes, 2012
Mg:Al 3:1 hydrotalcite (Ht), used in catalytic quantities, promotes the generation of nitrosoalkenes, azoalkenes and nitrile oxides. These can be intercepted in situ by heterocycles and olefins in [4+2] and [3+2] cycloaddition reactions, producing ...
Lemos, A., Lourenço, J. P.
core  

Regioselectivity in 1,3-Dipolar Cycloaddition of 3-(4-Ethoxyphenyl)-4-cyanosydnone with Propargylic Esters

open access: diamond, 2006
Fung Fuh Wong   +4 more
openalex   +1 more source

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