180908-13-8Relevant articles and documents
Preparation of cyclic imides from alkene-tethered amides: Application of homogeneous Cu(ii) catalytic systems
Chen, Suqing,Liu, Zhenghui,Mu, Tiancheng,Ou, Hualin,Tan, Xingxing,Wang, Peng,Yan, Zhenzhong,Yu, Dongkun,Zhao, Xinhui
, p. 7698 - 7707 (2020/03/13)
A Cu-based homogeneous catalytic system was proposed for the preparation of imides from alkene-tethered amides. Here, O2 acted as a terminal oxidant and a cheap and easily available oxygen source. The cleavage of CC bonds and the formation of C
Photoreactions of γ,δ-unsaturated chromium carbene complexes
Moser, William H.,Hegedus, Louis S.
, p. 7873 - 7880 (2007/10/03)
A number of functionalized γ,δ-unsaturated chromium carbene complexes were synthesized, and their photochemistry was studied. Photolysis of carbene complexes 5 and 17 induced intramolecular [2 + 2] cycloaddition to afford cyclobutanones 6 and 18, respectively. If the photoreactions were not run in thoroughly degassed solvents, small amounts of lactones 7 and 19 were obtained as well. Cyclobutanones 6 and 18 were stable once isolated, but underwent an acid-catalyzed Pinacol rearrangement/hydrolysis transformation in acidic solution to afford novel α-hydroxy-substituted bicyclo[3.1.0]hexanone compounds 20 and 21. Photolysis of cyclopropyl carbene complex 28 induced a vinylcyclopropyl rearrangement involving the photogenerated ketene moiety to provide α-alkoxy cyclopentenone 29.
Alicyclic Claisen Rearrangement. A General Carbocycle Synthesis Based on Four-Atom-Ring Contractions of Lactones
Abelman, Matthew M.,Funk, Raymond L.,Munger, John D.
, p. 4030 - 4032 (2007/10/02)
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