13562-76-0Relevant articles and documents
Nano CuFe2O4: An efficient, magnetically separable catalyst for transesterification of β-ketoesters
Gohain, Mukut,Kumar, Vinod,Van Tonder, Johannes H.,Swart, Hendrik C.,Ntwaeaborwa, Odireleng M.,Bezuidenhoudt, Barend C. B.
, p. 18972 - 18976 (2015/03/04)
The preparation of a variety of β-ketoesters was achieved in high yields from methyl acetoacetate under neutral conditions through the utilization of magnetic CuFe2O4 nanoparticles as catalyst. Recycling of the catalyst was performed up to eight times without significant loss in activity. The catalyst was characterized using XRD, XPS, SEM and TEM techniques.
Molecular iodine in ionic liquid: A green catalytic system for esterification and transesterification
Ren, Yiming,Cai, Chun
scheme or table, p. 1670 - 1676 (2010/08/03)
Esterification of carboxylic acids and transesterification of-ketoesters with alcohols have been developed using a catalytic amount of iodine in polyethylene glycol (PEG) ionic liquid (IL 1000) to afford the corresponding esters in good yields. By simple separation of the ionic-liquid phase containing the iodine, the system of I2/IL 1000 can be reused several times. Copyright
BF3OEt2: An efficient catalyst for transesterification of β-ketoesters
Yang, Jinhui,Ji, Congbin,Zhao, Yanmin,Li, Yunfeng,Jiang, Shizhi,Zhang, Zhiwei,Ji, Yongqiang,Liu, Wanyi
experimental part, p. 957 - 963 (2010/06/12)
A facile and selective transesterification of β-ketoesters using BF3OEt2 as catalyst is described. The emphasis has been placed on the reaction of methyl acetoacetate with a series of alcohols of different structures, leading in all cases to good to excellent yields.
Ionic liquid-regulated sulfamic acid: Chemoselective catalyst for the transesterification of β-ketoesters
Bo, Wang,Ming, Yang Li,Shuan, Suo Ji
, p. 5037 - 5039 (2007/10/03)
1-Propyl-3-methylimidazolium chloride ([C3MIm]Cl) ionic liquid and sulfamic acid (NH2SO3H), as a synergetic catalytic medium, were used for the transesterification of acetoacetate with alcohols of different structures. It shows the good ability for the chemoselective transesterificatin of β-ketoesters and maintains its catalytic activity in the reuse.
Mo-ZrO2 solid acid catalyst for transesterification of β-ketoesters
Reddy, Benjaram M.,Reddy, Vangala R.,Manohar, Basude
, p. 1235 - 1239 (2007/10/03)
An efficient and mild method for transesterification of β-ketoester catalyzed by Mo-ZrO2 solid acid catalyst is described.
The stereoselective preparation of β-hydroxy esters using a yeast reduction in an organic solvent
Medson, Caroline,Smallridge, Andrew J.,Trewhella, Maurie A.
, p. 1049 - 1054 (2007/10/03)
A range of (S)-β-hydroxy esters has been prepared in high yield (56-96%) and with very high enantioselectivity (>94%) using a yeast mediated reduction in light petroleum. It was found that the ester functionality had a marked effect on both the isolated yield and the quantity of yeast required to effect complete reduction.
Oxygen Nucleophile Induced Ring Cleavage of 6-Methyl-1,3-oxazine-2,4(3H)-dione -- A Case of Nucleophilic Attack at C-4
Singh, Harjit,Kumar, Subodh
, p. 1201 (2007/10/02)
Alcohols in the presence of triethylamine react with 6-methyl-1,3-oxazine-2,4(3H)-dione (2), preferentially at C-4 instead of C-2 to afford the corresponding alkyl acetoacetates (4), and alkyl carbamates (5).