Iodination of a series of benzene and thiophene derivatives by potassium dichloroiodate monohydrate was studied with and without a solvent. The liquid substrates tend to be more reactive in water while the solid substrates afford better yields in dichloromethane or under the solvent-free conditions. The 2-substituted thiophenes show good to excellent yields whereas the yield for 3-substituted and 3
Clean and Efficient Iodination of Thiophene Derivatives
作者:Frédéric Gohier、Jérémie Grolleau、Pierre Frère
DOI:10.1055/s-0035-1560480
日期:——
Abstract Iodination of thiophene derivatives is realized using a simple, fast, and efficient methodology. Iodination of thiophene and 2- or 3-substituted or 3,4-disubstituted thiophenes with N-iodosuccinimide (NIS) activated with 4-toluenesulfonic acid in ethanol gives pure iodinated products that require no further purification. Iodination of thiophene derivatives is realized using a simple, fast
Steinkopf, Justus Liebigs Annalen der Chemie, 1940, vol. 543, p. 128,132
作者:Steinkopf
DOI:——
日期:——
Terthiophene−Perylene diimides: Color Tuning via Architecture Variation
作者:Henrike Wonneberger、Chang-Qi Ma、Martina A. Gatys、Chen Li、Peter Bäuerle、Klaus Müllen
DOI:10.1021/jp911800q
日期:2010.11.18
N,N'-Bisoctylperylene diimides (PDIs) have been functionalized in the 1,7-position with terthiophenes of varying architecture giving three new donor-acceptor (D-A) compounds of the same molecular weight Different conjugation lengths, arrangements, and connections of the thiophene units within themselves and toward the PDI core have strong effects on the optical, electronic, and photochemical properties of the D-A compounds Like jigsaw pieces joined together to give different pictures, the terthiophenes are linked to PDIs to achieve different colors These insights into tuning color and energy levels can open new possibilities for tailoring chromophores to their desired applications, e g, organic photovoltaics or organic field effect transistors