Bithiophene-fusedbenzo[c]phospholes were successfully prepared by a TiII-mediated cyclization of dialkynylated bithiophene derivatives. It was revealed that the optical and electrochemical properties of the bithiophene-fusedbenzo[c]phospholes are deeply related to the π-conjugation modes at the fused bithiophene subunits. Both experimental and theoretical results demonstrate that the appropriately
Dual-Emissive Platinum(II) Metallacycles with Thiophene-Containing Bisacetylide Ligands
作者:Yang Cao、Michael O. Wolf、Brian O. Patrick
DOI:10.1021/acs.inorgchem.6b01464
日期:2016.9.6
Three cis-diphosphino Pt(II) metallacycles with thiophene-containing bisacetylide ligands were synthesized and their absorption and emission properties examined. These properties are explained by DFT and TD-DFT analysis of ground-state as well as singlet- and triplet-state energies and geometries. Two of the metallacycles show room-temperature dual emission (fluorescence and phosphorescence) with different
The thiophene fragmentation reaction towards bis ene‐yne‐compounds has been systematically investigated. The convenient accessibility of these multifunctional building blocks paths the way for novel applications in functional organic materials.
Regioselective <i>5-endo-dig</i>
Electrophilic Iodocyclization of Enediynes: A Convenient Route to Iodo-substituted Indenes and Cyclopenta-Fused Arenes
作者:Rakesh K. Saunthwal、Abhinandan K. Danodia、Monika Patel、Sushil Kumar、Akhilesh K. Verma
DOI:10.1002/asia.201601085
日期:2016.11.7
iodocyclization was selectively triggered by a distribution of electronic density along the alkyne bond. Subsequently, the iodo‐substituted indenes were diversified by employing palladium‐catalyzedcross‐couplingreactions and the coupled products were further confirmed by X‐ray crystallographic studies.
一种有效的碘介导的区域选择性串联方法,用于从容易获得的烯炔中合成对称和不对称的碘取代的茚满和立体选择性的环戊达[ b ]吡啶/噻吩,该过程通过原位形成碘鎓中间体,然后进行区域选择性的5-内-已经描述了挖掘环化。分子内亲电碘环化是通过沿炔键的电子密度分布选择性触发的。随后,通过钯催化的交叉偶联反应使碘取代的茚满多样化,并通过X射线晶体学研究进一步证实了偶联产物。
Synthetic Routes for Heteroatom‐Containing Alkylated/Arylated Polycyclic Aromatic Hydrocarbons
作者:Qinqin Shi、Xiaosong Shi、Changfu Feng、Yishi Wu、Nan Zheng、Jie Liu、Xiaoxi Wu、Hao Chen、Aidong Peng、Jianfeng Li、Lang Jiang、Hongbing Fu、Zengqi Xie、Seth R. Marder、Simon B. Blakey、Hui Huang
DOI:10.1002/anie.202014108
日期:2021.2.8
Synthetic routes for heteroatom‐containingpolycyclic aromatic hydrocarbons (H‐PAHs) with alkyl and aryl substitution are demonstrated. Three H‐PAHs, including heteroatom‐containing rubicenes (H‐rubicenes), angular‐benzothiophenes (ABTs), and indenothiophene (IDTs) were successfully synthesized by two key steps, including polysubstituted olefin formation and cyclization. Specifically, ABT and H‐rubicenes