42858-38-8Relevant articles and documents
High turnover numbers for the catalytic selective epoxidation of alkenes with 1 atm of molecular oxygen
Nishiyama, Yoshiyuki,Nakagawa, Yoshinao,Mizuno, Noritaka
, p. 3639 - 3641 (2007/10/03)
The diiron-substituted silicotungstate γ-SiW10{Fe3+(OH2}2O 386- (schematically shown) is an effective catalyst for the oxygenation of alkenes in homogeneous reaction media with 1 atm of molecular oxygen. For example, a selectivity for cyclooctene oxide of 98% and a turnover number of 10000 were achieved in the epoxidation of cyclooctene. The catalyst is stable under the reaction conditions, and its ability to use molecular oxygen raises the prospect of using it in industrial epoxidation processes.
Synthesis of α,β-unsaturated ketone from α-iodo ketone using photoirradiation
Ji, Shun-Jun,Takahashi, Eiji,Takahashi, T. Tomoyoshi,Horiuchi, C. Akira
, p. 9263 - 9266 (2007/10/03)
Irradiation of α-iodo ketone in hexane under a nitrogen atmosphere with a high-pressure mercury lamp (λ>300nm) at room temperature afforded the corresponding α,β-unsaturated ketones in good yield. This reaction affords a new, clean and convenient synthetic method for the α,β-unsaturated ketone.
