Bis(heptafluorobutyryl) peroxide (1) smoothly reacted with furans and thiophenes under mild conditions to regioselectively give 2-perfluoropropylfurans and thiophenes in high yields. Mechanistically, reactions with furans or thiophenes are considered to be initiated by one-electron transfers from substrates to 1. On the other hand, the perfluoropropylation of pyridine was proceeded by the usual free-radical
Bis(perfluoroalkanoyl) peroxide ((RFCO2)2) suffered a nucleophilic displacement with perfluoroalkanoate (RF′CO2−) to give new mixed peroxide (RF(CO)OO(CO)RF′). When thiophene was reacted with bis(perfluoroalkanoyl) peroxide in the presence of pyridinium perfluoroalkanoate, not only the perfluoroalkyl group (RF) of the peroxide, but also perfluoroalkyl group (RF′) of perfluoroalkanoate, was introduced
The decomposition of t-butyl heptafluoroperoxybutyrate (TBH) was studied in both toluene and methanol. Kinetic and product studies from the thermolysis showed that this peroxy ester decomposes heterolytically in nonpolarsolvents like toluene with homolysis, whereas in methanol this peroxy ester undergoes principally transesterification.
Soloshonok, V. A.; Khotkevich, A. B.; Serguchev, Yu. A., Journal of Organic Chemistry USSR (English Translation), 1989, vol. 25, # 10.2, p. 2025 - 2026
作者:Soloshonok, V. A.、Khotkevich, A. B.、Serguchev, Yu. A.
DOI:——
日期:——
YOSHIDA, MASATO;SASAGE, SHYUICHI;KAMIGATA, NOBUMASA;SAWADA, HIDEO;NAKAYAM+, BULL. CHEM. SOC. JAP., 62,(1989) N, C. 2416-2418