131719-45-4Relevant academic research and scientific papers
Copper-Catalyzed Allenylation-Isomerization Sequence of Penta-1,4-diyn-3-yl Acetates with P(O)H Compounds: Facile Synthesis of 1-Phosphonyl 2,4-Diynes
Shen, Ruwei,Yang, Jianlin,Luo, Bing,Zhang, Lixiong,Han, Li-Biao
, p. 3897 - 3906 (2016)
The copper-catalyzed reaction of 5-substituted penta-1,4-diyn-3-yl acetates with P(O)H compounds to efficiently give a new class of phosphonyl diynes is reported. The reaction may take place through a regioselective nucleophilic attack of phosphorus nucleophiles on Cu-allenylidene intermediates to form allenyl intermediates followed by a rapid allene-alkyne isomerization process. The synthetic utility of the obtained products is demonstrated. (Figure presented.).
Convenient synthesis of allenylphosphoryl compounds: Via Cu-catalysed couplings of P(O)H compounds with propargyl acetates
Shen, Ruwei,Luo, Bing,Yang, Jianlin,Zhang, Lixiong,Han, Li-Biao
supporting information, p. 6451 - 6454 (2016/05/24)
A novel Cu-catalysed substitution reaction of propargyl acetates with P(O)H compounds is developed to afford allenylphosphoryl compounds via C-P bond coupling in high yields under mild conditions. A plausible mechanism involving the nucleophilic interception of the Cu-allenylidene intermediates is proposed.
Indium(III) halide-catalyzed UV-irradiated radical coupling of iodomethylphosphorus compounds with various organostannanes
Suzuki, Itaru,Kiyokawa, Kensuke,Yasuda, Makoto,Baba, Akio
supporting information, p. 1728 - 1731 (2013/06/27)
The first catalytic radical coupling of iodomethylphosphorus compounds was accomplished with allyl-, alkenyl-, and allenylstannanes under UV irradiation in the presence of an indium(III) halide catalyst, for which a transmetalated allylic indium species was confirmed to be an active radical species.
