Air and Moisture Stable para- and ortho-Quinodimethane Derivatives Derived from bis-N-Heterocyclic Olefins.
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DOI: 10.1021/acs.orglett.2c03993
Abstract: Herein we report the development of a new methodology for the synthesis of various quinodimethane derivatives under two-electron oxidation of bis-N-heterocyclic olefins linked by different π-conjugated aromatic spacers. In case of para- and ortho-phenylene bridge,… read more here.
Keywords: air moisture; quinodimethane derivatives; para ortho; heterocyclic olefins ... See more keywords
Observation of different reactivities of para and ortho-water towards trapped diazenylium ions
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DOI: 10.1038/s41467-018-04483-3
Abstract: Water is one of the most fundamental molecules in chemistry, biology and astrophysics. It exists as two distinct nuclear-spin isomers, para- and ortho-water, which do not interconvert in isolated molecules. The experimental challenges in preparing… read more here.
Keywords: trapped diazenylium; diazenylium ions; ortho water; water ... See more keywords