Synthesis and Reactivity of Five-Membered Palladalactones from Arylallenes and Carbon Dioxide: Relevance to Catalytic Lactone Synthesis

被引:13
作者
Choi, Jun-Chul [1 ]
Shiraishi, Kouichi [1 ]
Takenaka, Yasumasa [1 ]
Yasuda, Hiroyuki [1 ]
Sakakura, Toshiyasu [1 ]
机构
[1] Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058565, Japan
关键词
COMPLEXES; ALKYNES; ALLENE;
D O I
10.1021/om400089n
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
A bis(tri-n-butylphosphine)palladium ((nBu(3)P)(2)Pd) complex was shown to catalyze the cyclization of arylallenes with carbon dioxide to yield six-membered lactones. The stoichiometric reaction of a (Me3P)(2)Pd complex with 1 equiv of arylallenes, followed by treatment with CO2, resulted in the formation of five-membered palladalactones, the structures of which were fully characterized by X-ray crystallography, NMR, IR, HRMS, and elemental analysis.
引用
收藏
页码:3411 / 3414
页数:4
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