30336-09-5Relevant articles and documents
Synthesis of highly substituted γ-hydroxybutenolides through the annulation of keto acids with alkynes and subsequent hydroxyl transposition
Mao, Wenbin,Zhu, Chen
, p. 5269 - 5272 (2016)
An efficient synthesis of highly functionalized γ-hydroxybutenolides through BF3-catalyzed annulation of keto acids with alkynes is described. Many advantages such as the use of routine reagents, easy operation, and a 100% atom efficiency are demonstrated in the method. The reaction can be readily scaled up to gram quantities, offering good practicality.
Intermolecular [2+2+1] Carbonylative Cycloaddition of Aldehydes with Alkynes, and Subsequent Oxidation to γ-Hydroxybutenolides by a Supported Ruthenium Catalyst
Miura, Hiroki,Takeuchi, Kazuki,Shishido, Tetsuya
supporting information, p. 278 - 282 (2016/01/25)
Intermolecular [2+2+1] carbonylative cycloaddition of aldehydes with alkynes and subsequent oxidation to γ-hydroxybutenolides is achieved using a supported ruthenium catalyst. A ceria-supported ruthenium catalyst promotes the reaction efficiently, even with an ambient pressure of CO or without external CO, thus giving the corresponding γ-hydroxybutenolide derivatives in good to high yields. Moreover this catalyst can be reused with no loss of activity.
Ozonolysis of Tetraphenylcyclopentadienone
Bailey, Philip S.,Ferrell, Thomas M.
, p. 5028 - 5030 (2007/10/02)
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