17206-61-0Relevant articles and documents
Highly regioselective hydroformylation of 1,5-hexadiene to linear dialdehyde catalyzed by rhodium complexes with tetraphosphorus ligands
Yu, Shichao,Chie, Yu-ming,Zhang, Xiaowei,Dai, Liyan,Zhang, Xumu
experimental part, p. 5575 - 5577 (2011/02/22)
Rhodium-catalyzed hydroformylation of 1,5-hexadiene to corresponding dialdehydes was investigated using tetraphosphorus ligands. These ligands showed a high regioselectivity for linear aldehydes (linear to branch ratio up to 98%) in very good yield (up to 87%). It was found that the introduction of the substituents at the ortho position of the biphenyl moiety has little effect on the regioselectivity and the electron-donating substituents retard the reaction somewhat.
Generation of Acyl Radicals from 2-Naphthyl Thioesters
Penn, John H.,Liu, Fang
, p. 2608 - 2612 (2007/10/02)
A series of S-2-naphthyl thioesters were synthesized from the corresponding carboxylic acids or acid chlorides.Irradiation of these thioesters in the presence of a hydrogen source (i.e., 1,4-cyclohexadiene) generated the corresponding aldehydes.In this fashion, primary, secondary, tertiary, and aryl carboxylic acids were converted to the aldehydes in high yields.Intramolecular radical cyclization reactions support the hypothesis that the reaction proceeds via the formation of acyl radicals.The formation of aldehydes was not perturbed by possible Norrish Type II reactions.
INTRAMOLEKULARE CYCLOADDITIONEN MIT ISOBENZOFURANEN - III. EIN HYDRIERTES NAPHTHOTHIOPHEN AUS EINEM 1-ALKENYLTHIENOFURAN
Schoening, A.,Friedrichsen, W.
, p. 1137 - 1138 (2007/10/02)
The synthesis of tetrahydronaphthothiophene 6 utilizing an intramolecular Diels-Alder reaction with an 1-alkenylthienofuran 4 is described.
