66374-09-2Relevant academic research and scientific papers
Iridium complex-catalyzed cross-coupling reaction of terminal alkynes with internal alkynes via C-H activation of terminal alkynes
Hirabayashi, Tomotaka,Sakaguchi, Satoshi,Ishii, Yasutaka
, p. 872 - 876 (2005)
The cross-dimerization of an electron-rich terminal alkyne with an electron-deficient internal alkyne was promoted by an iridium complex to produce a 1:1 adduct in high regio- and stereoselectivities. This reaction was extended to various combinations of
Regioselective Synthesis of 5-Metalated 2-Pyrones by Intramolecular Oxymetalation of Carbonyl-ene-yne Compounds Using Indium Trihalide
Yata, Tetsuji,Kita, Yuji,Nishimoto, Yoshihiro,Yasuda, Makoto
, p. 14330 - 14341 (2019/11/03)
The oxyindation of carbonyl-ene-yne compounds with indium trihalides proceeded efficiently to give di-, tri-, and tetrasubstituted 2-pyrones bearing a carbon-indium bond. The metalated 2-pyrone and a zwitterion intermediate were identified by X-ray crystallographic analysis. The application of organoindium compounds to oxidation or cross-coupling provided easy access to various multifunctionalized 2-pyrones. Some 2-pyrone derivatives show intense fluorescence only in the solid state (aggregation-induced emission).
