72209-46-2Relevant academic research and scientific papers
Synthesis of α-iodoketals from methyl ketones via sustainable and orthogonal tandem catalysis
Yang, Yan,Gao, Meng,Shu, Wen-Ming,Wu, Liu-Ming,Zhang, Dong-Xue,Wu, An-Xin
supporting information, p. 1226 - 1233 (2013/03/29)
A highly efficient method for the direct synthesis of α-iodoketals from methyl ketones has been developed via sustainable integration of orthogonal tandem catalytic reactions: copper(ii) oxide catalyzed iodination reaction and the subsequent excess or reg
Stereoselective synthesis of α-ylidene-β-dicarbonyl compounds: A mild PhI(OAc)2-mediated dehydrogenation process
Fan, Liyan,Chen, Wen,Tang, Kunshan,Wu, Dongbei
, p. 940 - 942 (2012/11/06)
PhI(OAc)2-mediated dehydrogenation of α-alkyl-β-dicarbonyl compound has been developed to afford α-ylidene-β- dicarbonyl compounds with high stereoselectivity under mild conditions. This process provides a complementary entry to stereoselectivity for the Knoevenagel reaction.
An efficient iodine-catalysed Knoevenagel condensation reaction in the presence of acetic anhydride
Li, Zhong-Xian,Liu, Xiao-Pei,Qiu, Zhen,Xu, Dan,Yu, Xue-Jun
experimental part, p. 35 - 36 (2011/04/24)
A mild, simple and efficient iodine catalysed system has been developed for the Knoevenagel condensation of 1,3-dicarbonyl compounds with various aromatic aldehydes in the presence of acetic anhydride. The reaction gave good to excellent yields for a broad range of substrates.
Efficient organocatalyzed solvent-free selective synthesis of conjugated enones
Goswami, Papori,Das, Babulal
scheme or table, p. 897 - 900 (2009/05/27)
A series of conjugated dienones and enones were synthesized by a reaction of both conjugated and simple aldehydes, respectively, with 1,3-dicarbonyl compounds and aldehydes under solvent-free conditions at room temperature in the presence of 10 mol % of l-proline as catalyst. The selective formation of one isomer was observed exclusively with most of the 1,3-dicarbonyl compounds and aldehydes. The most commonly formed xanthene derivative from the cyclic diketones is inhibited with our protocol, with the exclusive formation of conjugated dienones only.
C-H bond oxidation initiated pummerer- And knoevenagel-Type reactions of benzyl sulfide and 1,3-dicarbonyl compounds
Li, Zhiping,Li, Haijun,Guo, Xingwei,Cao, Lin,Yu, Rong,Li, Huanrong,Pan, Shiguang
supporting information; experimental part, p. 803 - 805 (2009/04/06)
A novel Pummerer-type reaction was developed via o-chloranil-mediated C-H bond oxidation. The reaction provides a simple and efficient method to construct sulfide derivatives. A Knoevenagel-type reaction was also achieved via multiple C-H bonds activation under neutral reaction conditions.
A highly efficient preparative method of α-ylidene-β-diketones via AuIII-catalyzed acyl migration of propargylic esters
Wang, Shaozhong,Zhang, Liming
, p. 8414 - 8415 (2007/10/03)
A highly efficient synthesis of α-alkylidene or benzylidene-β-diketones from readily available propargylic esters has been developed. The proposed key transformation is a novel intramolecular acyl migration to nucleophilic AuIII-C(sp2/sup
