69879-37-4Relevant academic research and scientific papers
Highly regioselective synthesis of cyclic enol silyl ethers using ring-closing metathesis
Okada, Akihiro,Ohshima, Takashi,Shibasaki, Masakatsu
, p. 8023 - 8027 (2007/10/03)
We developed the first highly regioselective synthesis of cyclic enol ethers from readily accessible acyclic alkenyl ketones or acyclic alkenyl silyl esters using ring-closing metathesis (RCM). The RCM of acyclic enol silyl ethers was examined using Tebbe
Thermal addition reaction of aroylketene with 1-aryl-1- trimethylsilyloxyethylenes: Aromatic substituent effects of aroylketene and aryltrimethylsilyloxyethylene on their reactivity
Saitoh,Oyama,Sakurai,Niimura,Hinata,Horiguchi,Toda,Sano
, p. 956 - 966 (2007/10/03)
The thermal addition reaction of various aroylketenes (C) generated by the thermolysis of 5-aryldioxofurans (A) to 1-aryl-1-trimethylsilyloxyethylenes gave 1,5-diarylpentane-1,3,5-triones (D) and 2,6-diaryl-4H-pyran-4-ones (E). The introduction of electron withdrawing substituents in the aroylketene and of electron donating substituents facilitated the addition reaction. The observed substituent effects and the reaction mechanism are interpreted in terms of molecular orbital analyses.
