Iron-Catalyzed Indolizine Synthesis from Pyridines, Diazo Compounds, and Alkynes
作者:Tim Douglas、Anca Pordea、James Dowden
DOI:10.1021/acs.orglett.7b03252
日期:2017.12.1
The iron(III)-catalyzed synthesis of indolizines from commercially available alkyne, pyridine, and diazo precursors is reported. This mild, expedient method is tolerant of various solvents and proceeds with as little as 0.25 mol % [Fe(TPP)Cl]. Significantly, this multicomponent reaction is compatible with electrophilic alkynes; control experiments demonstrate the importance of the catalyst in promoting
Hemoglobin-Catalyzed Synthesis of Indolizines Under Mild Conditions
作者:Fengxi Li、Xuyong Tang、Yaning Xu、Chunyu Wang、Liu Zhang、Jiaxin Zhang、Jiaxu Liu、Zhengqiang Li、Lei Wang
DOI:10.1002/ejoc.201901591
日期:2019.12.19
Hemoglobins were used to catalyze the multicomponent synthesis of indolizines. Satisfactory yields and mild reaction conditions make this method highly useful for practical applications. Furthermore, this study provides a new example of a hemoglobin‐catalyzed organic reaction and is expected to expand the utilization of hemoglobin in organic synthesis.
In Situ Generation of Quinolinium Ylides from Diazo Compounds: Copper-Catalyzed Synthesis of Indolizine
作者:Rongxiang Chen、Yanwei Zhao、Hongmei Sun、Ying Shao、Yudong Xu、Meihua Ma、Liang Ma、Xiaobing Wan
DOI:10.1021/acs.joc.7b01042
日期:2017.9.15
The Cu-catalyzedthree-component reaction between quinolines, diazo compounds, and alkenes has been established for direct construction of indolizine derivatives via quinolinium ylides. This methodology is distinguished by the use of a commercially inexpensive catalyst and readily available starting materials, wide substrate scope, and operational simplicity.
Synthesis and optical properties of a series of pyrrolopyridazine derivatives: deep blue organic luminophors for electroluminescent devices
作者:Yang Cheng、Bin Ma、Fred Wudl
DOI:10.1039/a903025e
日期:——
We describe a systematic study of a series of eight blue light-emitting molecules which can be prepared in one step from inexpensive commercial starting materials. The relative luminescence quantum yield can be as high as 84% and the heterocycles are luminescent in the condensed state, either as solids or as oils, indicating that there is no self-quenching in this system. The last observation augurs well for these heterocycles being useful in the fabrication of deep blue light-emitting devices.
Sensing properties of light-emitting single walled carbon nanotubes prepared via click chemistry of ylides bound to the nanotube surface
作者:M. K. Bayazit、L. O. Pålsson、K. S. Coleman
DOI:10.1039/c5ra04330a
日期:——
Fluorescent single walled carbon nanotube-mediated sensors with a detection limit of ∼10−8M for nitrophenol based chemical warfare agents and environmental pollutants.