Divergent Strategies for the π-Extension of Heteroaryl Halides Using Norbornadiene as an Acetylene Synthon
作者:Siyeon Jeong、Eunmin Kim、Minkyu Kim、Ye Ji Hwang、Birakishore Padhi、Jonghoon Choi、Yunho Lee、Jung Min Joo
DOI:10.1021/acs.orglett.0c03732
日期:2020.12.18
reactions of five-membered heteroaryl halides and norbornadiene (NBD) were developed. Either direct addition of (benzo)azoles or 2:1 annulation was achieved depending on the propensity of the intermediate complex to undergo palladacycle formation, determined by the nature and substitution pattern of the heteroarene. The obtained exo- and cis-diheteroaryl norbornenes underwent epimerization and retro-Diels–Alder
Base-Promoted/Gold-Catalyzed Intramolecular Highly Selective and Controllable Detosylative Cyclization
作者:Chenghao Zhu、Lin Qiu、Guangyang Xu、Jian Li、Jiangtao Sun
DOI:10.1002/chem.201502073
日期:2015.9.7
controllable and synthetically useful base‐promoted intramolecular detosylative cyclization of bis‐N‐tosylhydrazones has been achieved, affording N‐containing heterocycles and cyclic olefins under transition‐metal‐free or gold‐catalyzed procedures, respectively. Moreover, an effective and practical metal‐free or gold‐catalyzed approach to synthesize polycyclic aromatic compounds is also reported.
Unexpected rearrangement during the gas-phase dehalogenation approach to benzodithiophenes
作者:R. Alan Aitken、Adebayo O. Oyewale
DOI:10.1039/c4ra15004j
日期:——
As well as the expected dehalogenative coupling products, isomers are formed via a novel radical process.
除了预期的去卤代偶联产物外,还通过一种新颖的自由基过程形成了异构体。
[EN] DIBENZOSILOLE MONOMERS AND POLYMERS AND METHODS FOR THEIR PREPARATION AND USE<br/>[FR] MONOMÈRES ET POLYMÈRES DE DIBENZOSILOLE, PROCÉDÉS DE PRÉPARATION ET D'UTILISATION DE CES DERNIERS
申请人:LIFE TECHNOLOGIES CORP
公开号:WO2016073052A1
公开(公告)日:2016-05-12
Water-soluble, conjugated polymers containing one or more dibenzosilole monomer residues, as well as compositions, kits, and methods of making and using such polymers are disclosed. Also disclosed are dibenzosilole derivatives substituted with one or more water-solubilizing groups, and methods of making and using such derivatives to prepare water-soluble dibenzosilole polymers.
ORGANIC COMPOUND AND PHOTOELECTRIC CONVERSION ELEMENT
申请人:CANON KABUSHIKI KAISHA
公开号:US20190043926A1
公开(公告)日:2019-02-07
Provided is an organic compound represented by the following general formula [1], the compound having an absorption peak in a long wavelength region of a visible light region:
where Ar
1
and Ar
2
each represent an aryl group or the like, Ar
3
represents an arylene group or the like, m represents an integer of 0 to 3, R
1
to R
4
each represent a hydrogen atom or the like, X
1
and X
2
are each independently selected from oxygen and sulfur, Q represents, for example, a substituent represented by the general formula [1-1], R
5
to R
7
each represent a hydrogen atom or the like, and n represents an integer of 0 to 2.