131699-22-4Relevant academic research and scientific papers
Synthesis of Medium-Ring-Sized Benzolactams by Using Strong Electrophiles and Quantitative Evaluation of Ring-Size Dependency of the Cyclization Reaction Rate
Kurouchi, Hiroaki,Ohwada, Tomohiko
, p. 876 - 901 (2019/12/30)
Benzolactams with medium-sized rings were synthesized via the electrophilic aromatic substitution reaction of carbamoyl cations (R1R2N+═C═O) in good to high yields without dilution. These reactions were utilized to quantitatively examine the extent of retardation of medium-sized ring formation, compared to five- or six-membered ring formation. The order of reaction rates of formation of cyclic benzolactams is six- > five- > seven- > eight- > nine-membered ring at 25 °C. The present reaction provides a route to eight- A nd nine-membered benzolactams.
Manganese-catalyzed ring-opening carbonylation of cyclobutanol derivatives
Meyer, Tim,Yin, Zhiping,Wu, Xiao-Feng
supporting information, p. 864 - 867 (2019/02/20)
Herein, we report a manganese-catalyzed ring-opening carbonylation of cyclobutanol derivatives through cyclic C–C bond cleavage. The reaction happens via a radical-mediated pathway to selectively generate 1,5-ketoesters. A variety of substrates with subst
Increasing the open circuit voltage of bulk-heterojunction solar cells by raising the LUMO level of the acceptor
Kooistra, Floris B.,Knol, Joop,Kastenberg, Fredrik,Popescu, Lacramioara M.,Verhees, Wiljan J. H.,Kroon, Jan M.,Hummelen, Jan C.
, p. 551 - 554 (2007/10/03)
We report the synthesis, characterization, and electrochemical properties of ten new fullerene derivatives for usage in organic solar cells. The phenyl ring of PCBM was substituted with electron-donating and electron-withdrawing substituents to study thei
