Baal, Eduard; Klein, Marius; Harms, Klaus; Sundermeyer, Jorg published an article in 2021. The article was titled 《2,9-Diazadibenzoperylene and 2,9-Dimethyldibenzoperylene-1,3,8,10-tetratriflates: Key to Functionalized 2,9-Diazaperopyrenes》, and you may find the article in Chemistry – A European Journal.Reference of Diethyl 2-methylmalonate The information in the text is summarized as follows:
The synthesis of 2,9-diaza-1,3,8,10-tetratriflato-dibenzoperylene and corresponding 2,9-dimethyl-1,3,8,10-tetratriflato-dibenzoperylene I [X = NH, CMe] was developed at multigram scale via reduction of one of industrially most important high-performance dyes, perylene-3,4,9,10-tetracarboxylic diimide (PTCDI) and of corresponding dihydroxy peropyrenequinone precursor. The focus of this paper was on reactivity pattern of compound I [X = NH] as key intermediate toward highly functionalized 2,9-diazadibenzopyrelenes (DDPs) II [R = 2-thienyl, C≡CSiMe3, piperidinyl, etc.] obtained via catalytic substitution of four triflate by aryl, heteroaryl, alkynyl, aminyl, and O-phosphanyl substituents. The influence of electron-donating substituents (OSiMe3, OPt-Bu2, N-piperidinyl), electron-withdrawing (OTf, 3,5-bis-trifluoromethyl-phenyl) and of electron-rich π-conjugated (2-thienyl, 4-tert-butylphenyl, trimethylsilyl-ethynyl) substituents on optoelectronic and structural properties of these functionalized DDPs II was investigated via XRD analyzes, UV/Vis, PL spectroscopy, and by electroanal. CV. These results were correlated to results of DFT and TD-DFT calculations Thus, functionalized DPPs II with easily tunable HOMO and LUMO energies and gap became available via a new and reliable synthetic strategy starting from readily available PTCDI. In the experiment, the researchers used Diethyl 2-methylmalonate(cas: 609-08-5Reference of Diethyl 2-methylmalonate)
Diethyl 2-methylmalonate(cas: 609-08-5) belongs to aliphatic hydrocarbons. Aliphatic hydrocarbons belong to the most abundant fraction in crude oil. Aliphatics molecules are linear or branched open-chain structures such as n-alkanes, isoalkanes, cycloalkanes (naphthenes), terpenes and steranes.Reference of Diethyl 2-methylmalonate
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics