18545-25-0Relevant articles and documents
Bright, Multi-responsive, Sky-Blue Platinum(II) Phosphors Based on a Tetradentate Chelating Framework
Liu, Lijie,Wang, Xiang,Wang, Nan,Peng, Tai,Wang, Suning
, p. 9160 - 9164 (2017)
A new class of highly efficient and stable, blue-phosphorescent PtII complexes based on a tetradentate chelating framework has been found to exhibit highly sensitive and reversible responses to multiple external stimuli including temperature, pressure, and UV irradiation with distinct phosphorescent color switching—from blue to red or white. Intermolecular excimer formation is the main origin of this intriguing multi-response phenomenon. Highly efficient singlet-oxygen sensitization by the PtII compounds yields UV-light-induced phosphorescence enhancement and color switching.
Preparation of cis-Fused Tetrahydropyranyl Lactones via Palladium-Catalysed Cyclocarbonylation of Enediols
Cintulová, Daniela,Slahú?ková, Monika,Pa?trnák, Juraj,Prónayová, Na?a,Szolcsányi, Peter
supporting information, p. 755 - 762 (2017/02/15)
The stereoselective palladium-catalysed cyclocarbonylation of hex-5-ene-1,4-diols affords cis-fused bicyclic lactones only. Ring-opening with N,O-dimethylhydroxylamine hydrochloride gives the corresponding Weinreb amides, and their subsequent recyclisation provides advanced synthons for the prospective synthesis of decarestrictine L. The relative configurations of all the prepared tetrahydropyrans are determined by NOESY. The attempted transformations of lactones into methyl ketones leads to an unexpected furan, the formation of which is discussed.
Selective reduction of esters to aldehydes under the catalysis of well-defined NHC-iron complexes
Li, Haoquan,Misal Castro, Luis C.,Zheng, Jianxia,Roisnel, Thierry,Dorcet, Vincent,Sortais, Jean-Baptiste,Darcel, Christophe
supporting information, p. 8045 - 8049 (2013/08/23)
On a direct course to the aldehyde: Hydrosilylation catalyzed by a well-defined N-heterocyclic-carbene-iron complex under UV irradiation enabled the selective reduction of esters to aldehydes (see scheme; Bn=benzyl, Mes=mesityl). The low catalyst loading and very mild reaction conditions make this chemoselective transformation a promising alternative to the reduction of esters with diisobutylaluminum hydride. Copyright