Results 231 to 240 of about 155,987 (342)

Unprecedented “off‐pathway” [2+2] Cycloaddition‐Retroelectrocyclization Reaction Between an Unsymmetric Alkyne and Tetracyanoquinodimethane

open access: yesAngewandte Chemie, EarlyView.
The widely used [2+2] cycloaddition‐retroelectrocyclization reaction between tetracyanoquinodimethane (TCNQ) and an activated alkyne has been shown to occur with “inverted” regiochemistry to give exclusive formation of an unexpected regioisomer. A combined experimental and theoretical study helped unravel the peculiar reaction mechanism underlying the ...
Oscar Fernández‐Vera   +5 more
wiley   +2 more sources

A Rapid Assay for Urinary Porphyrins by Thin-Layer Chromatography [PDF]

open access: bronze, 1967
C. Ronald Scott   +2 more
openalex   +1 more source

Iridium porphyrin-catalysed asymmetric carbene insertion into primary N-adjacent C-H bonds with TON over 1000000. [PDF]

open access: yesNat Commun
Li ZR   +9 more
europepmc   +1 more source

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