Organic synthesis using (diacetoxyiodo)benzene (DIB): Unexpected and novel oxidation of 3-oxo-butanamides to 2,2-dihalo-<i>N</i>-phenylacetamides
作者:Wei-Bing Liu、Cui Chen、Qing Zhang、Zhi-Bo Zhu
DOI:10.3762/bjoc.8.38
日期:——
cleavage of a carbon-carbon bond in the presence of DIB and a Lewis acid as the halogen source, and thus this method significantly expands the value of DIB as a unique and powerful tool in chemical synthesis. This protocol not only adds a new aspect to reactions that use other hypervalent iodine reagents but also provides a wide space for the synthesis of disubstituted acetamides.
Approach for the Direct Synthesis of<i>β</i>-Dichlorosubstituted Acetanilides Using Iodine Trichloride (ICl<sub>3</sub>) as the Oxidant and Catalyst
作者:Qing Zhang、Weibing Liu、Cui Chen、Liquan Tan
DOI:10.1002/cjoc.201300007
日期:2013.4
A reliable method for directsynthesis of β‐dichlorosubstituted acetanilides is reported. The key transformation involves the oxidative and catalytic cleavage of a carbon‐carbon bond in the presence of iodinetrichloride (ICl3). In this protocol ICl3 is used not only as the catalyst but also as the oxidant which widely broadens the scope of its application in organic synthetic chemistry.
An Efficient Greener Approach for N-acylation of Amines in Water Using Benzotriazole Chemistry
作者:Tarek S. Ibrahim、Israa A. Seliem、Siva S. Panda、Amany M. M. Al-Mahmoudy、Zakaria K. M. Abdel-Samii、Nabil A. Alhakamy、Hani Z. Asfour、Mohamed Elagawany
DOI:10.3390/molecules25112501
日期:——
straightforward, mild and cost-efficient synthesis of various arylamides in water was accomplished using versatile benzotriazole chemistry. Acylation of various amines was achieved in water at room temperature as well as undermicrowaveirradiation. The developed protocol unfolds the synthesis of amino acid aryl amides, drug conjugates and benzimidazoles. The environmentally friendly synthesis, short reaction
Synthesis, Fourier transform infrared and Raman spectra, assignments and analysis of N-(phenyl)- and N-(chloro substituted phenyl)-2,2-dichloroacetamides
作者:V Arjunan、S Mohan、S Subramanian、B Thimme Gowda
DOI:10.1016/j.saa.2003.07.003
日期:2004.4
configuration XyC6H(5-y)-NHCO-CHCl2 (where, X = Cl and y = 1, 2 and 3) were synthesised and the Fourier transform infrared (FTIR) and Fourier transform Raman (FT-Raman) spectra of the compounds were recorded and analysed. The FTIR spectra of all the compounds were recorded in a Bruker IFS 66V spectrometer in the range of 4000-400 cm(-1) and the FT-Raman spectra were also recorded in the same instrument in the