LANTHANIDE COMPLEXES BASED ON TRIETHYLENETETRAMINE-N,N,N',N'',N''',N'''-HEXAACETIC ACID DERIVATIVES
申请人:UNIVERSITE D'ORLEANS
公开号:US20190330242A1
公开(公告)日:2019-10-31
The present invention relates to a complex comprising at least one lanthanide (Ln) and at least one compound (C) comprising a unit of formula (I) below:
said unit of formula (I) being covalently connected to at least one antenna which absorbs at a wavelength ranging from 500 nm to 900 nm.
Synthesis of multisubstituted 1H-pyrrole: selenium-catalyzed reaction of γ-nitro substituted carbonyl compounds and carbon monoxide
作者:Rui Umeda、Tsukasa Mashino、Yutaka Nishiyama
DOI:10.1016/j.tet.2014.04.061
日期:2014.7
The novel and efficient selenium-catalyzed reductiveN-heterocyclization of γ-nitro substituted carbonyl compounds with carbon monoxide has been developed. Various multisubstituted 1H-pyrroles can be easily prepared by this protocol. The one-pot synthesis of ethyl 1H-pyrrole-3-carboxylate derivatives was also successfully attained by the selenium-catalyzed reaction of β-ketoester, vinyl nitro compounds and
Effects of π-extension on pyrrole hemithioindigo photoswitches
作者:Joshua E. Zweig、Tongil A. Ko、Junrou Huang、Timothy R. Newhouse
DOI:10.1016/j.tet.2019.130466
日期:2019.8
systematic introduction of aryl units to a parent pyrrole hemithioindigo photoswitch. Increasing the size of the 5′-aryl substituent is ineffective at producing further redshifted chromophores. A second generation of 3′,5′-diarylated photoswitches which possess increased tunability is reported. Experimental and computational evidence indicates the 4′ position is electronically isolated from the bulk
Reaction between 4-Nitro-1,3-diarylbutan-1-ones and Ammonium Acetate in the Presence of Morpholine and Sulfur: An Efficient Synthesis of 2,4-Diarylpyrroles
An efficient synthesis of 2,4-diarylpyrroles is described. Heating a mixture of a 4-nitro-1,3-diarylbutan-1-one and ammoniumacetate in the presence of morpholine and sulfur afforded the corresponding 2,4-diarylpyrroles in excellent yields.
Synthesis of π-conjugated asymmetric aza-BODIPYs via nitrosobicyclopyrroles
作者:Ryota Mori、Minenari Asakura、Yukinori Kobayashi、Hiromu Mashimo、Makoto Roppongi、Satoshi Ito
DOI:10.1016/j.tetlet.2022.153759
日期:2022.4
π-Conjugated aza-BODIPYs with absorption in the near-infrared region have attracted attention, but there are few reports of their synthesis. We report the synthesis and absorption properties of π-conjugated asymmetricaza-BODIPYs by nitrosation and retro-Diels-Alder reaction of bicyclo[2.2.2]octadiene-fused bicyclopyrroles. We also synthesized aza-BODIPY fused with [2.3]naphtho and [2.3]anthra structures