Thermal Generation of Pentacenes from Soluble 6,13-Dihydro-6,13-ethenopentacene Precursors by a Diels–Alder-retro-Diels–Alder Sequence with 3,6-Disubstituted Tetrazines
摘要:
3,6-Substituted tetrazines 2 (a: R-2 = 2-pyridyl or b: CO2Me) react with 2,3,9,10-(R-1)(4)-dihydro-6,13-ethenopentacene 3 in solution at elevated temperature to the corresponding pentacene 1 (a: R-1 = H, b: OBn, c: F).
Bridging the Gap between Pentacene and Perfluoropentacene: Synthesis and Characterization of 2,3,9,10-Tetrafluoropentacene in the Neutral, Cationic, and Dicationic States
作者:Bin Shen、Thomas Geiger、Ralf Einholz、Florian Reicherter、Simon Schundelmeier、Cäcilia Maichle-Mössmer、Bernd Speiser、Holger F. Bettinger
DOI:10.1021/acs.joc.7b03241
日期:2018.3.16
The thermal and photochemical syntheses of 2,3,9,10-tetrafluoropentacene (F4PEN) from 6,13-etheno bridged precursors were investigated computationally and experimentally. A computational study of the retro-Diels–Alder reaction to give 2,3,9,10-tetrasubstituted pentacenes and pyridazine revealed a linear correlation between barrier height and substituent constant (σp) indicative of an electronic effect
Thermal Generation of Pentacenes from Soluble 6,13-Dihydro-6,13-ethenopentacene Precursors by a Diels–Alder-retro-Diels–Alder Sequence with 3,6-Disubstituted Tetrazines
作者:Rafael P. Bula、Iris M. Oppel、Holger F. Bettinger
DOI:10.1021/jo202450u
日期:2012.4.6
3,6-Substituted tetrazines 2 (a: R-2 = 2-pyridyl or b: CO2Me) react with 2,3,9,10-(R-1)(4)-dihydro-6,13-ethenopentacene 3 in solution at elevated temperature to the corresponding pentacene 1 (a: R-1 = H, b: OBn, c: F).