- Palladium-Catalyzed Carbonylative Annulation Reactions Using Aryl Formate as a CO Source: Synthesis of 2-Substituted Indene-1,3(2H)-dione Derivatives
-
An efficient synthesis of 2-substituted indene-1,3(2H)-diones from stable and readily available 1-(2-halophenyl)-1,3-diones by employing phenyl formate as a CO source has been developed. The reaction occurred via palladium-catalyzed intramolecular carbonylative annulation using K3PO4 as a base and DMSO as a solvent at 95 °C. In this protocol, the reaction showed a broad substrate scope with good to excellent yields.
- Zhang, Ying,Chen, Jing-Lei,Chen, Zhen-Bang,Zhu, Yong-Ming,Ji, Shun-Jun
-
p. 10643 - 10650
(2015/11/18)
-
- SmCl3-catalyzed C-acylation of 1,3-dicarbonyl compounds and malononitrile
-
(Chemical Equation Presented) A recyclable, convenient, and efficient catalytic system for C-acylation of 1,3-dicarbonyl compounds and malononitrile with acid chlorides has been developed, giving moderate to excellent yields under mild conditions. This is the first catalytic example of such reactions. In addition, by applying this protocol as the key step, 3,5-disubstituted-1H- pyrazole-4-carboxylate can easily be synthesized in high yields in a one-pot procedure.
- Shen, Quansheng,Huang, Wen,Wang, Jialiang,Zhou, Xigeng
-
p. 4491 - 4494
(2008/03/12)
-
- α,β-UNSATURATED THIO COMPOUNDS. SYNTHESIS OF MONOTHIOCARBONYL ANALOGS OF 2-BENZOYL-1,3-INDANEDIONE
-
Structural isomers of the monothiocarbonyl analogs of 2-benzoyl-1,3-indanedione were obtained. 1-Oxo-2-(α-hydroxybenzylidene)-3-indanethione was synthesized by the action of hydrogen sulfide on 2-benzoyl-1,3-indanedione in the presence of hydrogen chlorid
- Korchevin, N. A.,Usova, T. L.,Vasil'ev, A. V.,Dorofeev, I. A.,Usov, V. A.,Voronkov, M. G.
-
p. 518 - 521
(2007/10/02)
-