Low-valent Titanium Induced Reductive Coupling of Diaryl Diselenides with Acid Chlorides or Acid Anhydrides: Facile Synthesis of Selenoesters
作者:Long-Hu Zhou、Yong-Min Zhang
DOI:10.1039/a803235a
日期:——
Selenoesters have been prepared in good yield by reaction of diaryldiselenides with acid chlorides or acid anhydrides induced by the TiCl4–Sm–THF system under mild reaction conditions.
A Regioselective Aluminum Chloride-catalyzed Acylation of Allylic Selenides via α-Silyl Intermediates. A Facile Route to Dihydrojasmone
作者:Kunio Hiroi、Hiroyasu Sato
DOI:10.1246/cl.1986.1723
日期:1986.10.5
The aluminum chloride-catalyzed acylation of α-silylallylic selenides with acid chlorides at −78 °C produced γ-acylated vinylic selenides regioselectively. α-Silylallylic selenides in some cases underwent [1,3] shifts of the selenenyl groups by the catalysis with aluminum chloride, affording γ-silylallylic selenides. This regioselective acylation of allylic selenides provides a new route to dihydrojasmone
The Synthesis of<i>Se</i>-Alkyl Alkaneselenoates via (1-Iodo-1-alkenyl)dialkylboranes
作者:Masayuki Hoshi、Yuzuru Masuda、Akira Arase
DOI:10.1246/bcsj.61.3764
日期:1988.10
Se-Alkyl alkaneselenoates were formed in moderate to good yields by successive reactions of (1-iodo-1-alkenyl)bis(1,2-dimethylpropyl)boranes with alkylselenomagnesium bromides and alkaline hydrogen peroxide.
The 1-(organoselanyl)perfluoroalkanols 1, 3, 4, and 10 were successfully prepared and reactions with hexanoyl chlorides to produce the corresponding esters 5, 7, and 8, accompanied by the selenoesters 6 were conducted. The DBU-mediated alkylations of the heptafluorobutanols 4, 10, and the α-p-nitrobenzoate 2 with alkyl halides easily provided alkyl phenyl selenides 9a–9i and 11a–11c in good to high yields.
Reductive Cleavage of Se–Si Bond in Arylselenotrimethylsilane: A Novel Method for the Synthesis of Selenoesters
作者:Songlin Zhang、Yongmin Zhang
DOI:10.1080/00397919808004959
日期:1998.11
Abstract Arylselenotrimethylsilane is reduced by samarium diiodide to yield samarium arylselenolates. These new selenolate anion species reacted smoothly with acyl halides to give selenoesters.