1155911-73-1Relevant articles and documents
Oxidative Electrocyclization of Diradicaloids: C-C Bonds for Free or How to Use Biradical Character for π-Extension
Feofanov, Mikhail,Akhmetov, Vladimir,Sharapa, Dmitry I.,Amsharov, Konstantin
, p. 5741 - 5745 (2020)
Herein, we show that biradical character and appropriate distribution of spin density can be used for synthetic purposes. We demonstrate the rational domino annulation that includes dehydrative π-extension (DPEX) as the initiation step and subsequent oxid
NITROGENATED HETEROCYCLIC RING DERIVATIVE AND ORGANIC ELECTROLUMINESCENT ELEMENT COMPRISING SAME
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Page/Page column 29, (2012/12/13)
A nitrogen-containing heterocyclic derivative represented by the following formula (1): wherein any "12-a" groups of R1 to R12 are independently a hydrogen atom, a fluorine atom, a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms or a substituted or unsubstituted heterocyclic group having 5 to 30 ring atoms; any "a" groups of R1 to R12 are independently a single bond which is bonded to L1; L1 is a single bond, a "b+1" valent substituted or unsubstituted hydrocarbon ring group having 6 to 30 ring carbon atoms or a "b+1" valent substituted or unsubstituted heterocyclic group having 5 to 30 ring atoms; HAr is a substituted or unsubstituted nitrogen-containing heterocyclic group; and "a" and "b" are independently an integer of 1 to 4, and at least one of "a" and "b" is 1. Also disclosed is a nitrogen-containing heterocyclic derivative represented by the following formula (21) or (31):
