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18 Dec 02:24

Efficient and selective palladium-catalyzed direct oxidative esterification of benzylic alcohols under aerobic conditions

Publication date: 28 December 2017
Source:Tetrahedron, Volume 73, Issue 52
Author(s): Yongke Hu, Bindong Li
A highly efficient palladium-catalyzed approach for the direct oxidative esterification of benzylic alcohols with methanol and long-chain aliphatic alcohols under mild conditions has been achieved. This practical catalyst system exhibits a broad substrate scope and good functional group tolerance. Catalytic amount of Bi(OTf)3 is used as co-catalyst to improve the activity and selectivity of the reactions. A variety of esters are obtained in yields of 43–96%.

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23 Sep 09:55

Enhanced thermal stability of palladium oxidation catalysts using phosphate-modified alumina supports

Catal. Sci. Technol., 2017, 7,5038-5048
DOI: 10.1039/C7CY01534H, Paper
Jinshi Dong, Jun Wang, Jianqiang Wang, Ming Yang, Wei Li, Meiqing Shen
Alumina with 5.0 [small mu ]mol m-2 phosphorus additives could retain a higher Pd dispersion after aging, resulting in much higher CO oxidation activity.
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09 Feb 02:52

Iodine-catalyzed aerobic oxidation of o-alkylazoarenes to 2H-indazoles

Publication date: 9 March 2017
Source:Tetrahedron, Volume 73, Issue 10
Author(s): Xiangli Yi, Chanjuan Xi
An iodine-catalyzed aerobic-oxidative C-H functionalization of o-alkylazoarenes to afford 2H-indazoles has been developed. CuI was found to be an effective additive to accelerate the regeneration of iodine in the catalytic cycle. This catalytic system is suitable for both electron-rich and electron-deficient azoarenes and tolerates a variety of functional groups with high yields. A gram-scale reaction was successfully conducted, proving the scalability of this reaction.

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29 Aug 14:58

Characterization of Methanobactin from Methylosinus sp. LW4

by Grace E. Kenney, Anthony W. Goering, Matthew O. Ross, Caroline J. DeHart, Paul M. Thomas, Brian M. Hoffman, Neil L. Kelleher and Amy C. Rosenzweig

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Journal of the American Chemical Society
DOI: 10.1021/jacs.6b06821
14 Aug 15:36

Exploiting the Reactivity of Isocyanide: Coupling Reaction between Isocyanide and Toluene Derivatives Using the Isocyano Group as an N1 Synthon

by Zhiqiang Liu, Xinglu Zhang, Jianxiong Li, Feng Li, Chunju Li, Xueshun Jia and Jian Li


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Organic Letters
DOI: 10.1021/acs.orglett.6b01928