Tetrabromomethane as an Organic Catalyst: a Kinetic Study of CBr4-Catalyzed Schiff Condensation
Tetrabromomethane functions as an organic catalyst for non-redox reactions of carbonyl species and, in particular, it enhances the aldehyde–acyl hydrazide condensation to give N-acyl hydrazones. This simple, inexpensive, and commercially available halomet
Bolotin, Dmitrii S.,Kukushkin, Vadim Yu.,Tolstoy, Peter M.,Vovk, Mikhail A.,Yunusova, Sevilya N.
BF3-Etherate-catalyzed tandem reaction of 2-formylarylketones with electron-rich arenes/heteroarenes: An assembly of isobenzofurans
An efficient and BF3·Et2O-catalyzed chemoselective synthesis of diversified 1,3-diarylisobenzofuran in a high yield has been described. The reaction proceeds through sequential hydroarylation-cyclization between 2-formylarylketones and electron-rich arenes/heteroarenes. Advantageous features of the developed methodology include operational simplicity, a broad substrate scope, and applicability towards gram scale synthesis. The utility of isobenzofuran derivatives as the diene was extended to the synthesis of [4+2] cyclo-adducts with DMAD and the synthesis of 1,2-dicarbonylarenes in good yields.
Mishra, Pawan K.,Kumar, Ankit,Verma, Akhilesh K.
supporting information
p. 6122 - 6125
(2020/06/18)
Combined Alkylating Agents as a Resolution for Highly Selective N-Alkylation of 2-Hydroxybenzaldehyde Acylhydrazones
Although 2-hydroxybenzaldehyde acylhydrazones, such as salicylaldehyde acylhydrazones, are intriguing bioactive molecules, few of their N-alkylated derivatives are known, and only methyl analogues have been reported previously. We achieved selective N-alk
Cheng, Xin J.,Jin, Long F.,Wu, La M.,Zhang, Hui J.,Zhang, Qiao Y.,Zhao, Xin Y.
supporting information
p. 1334 - 1338
(2019/06/19)
Efficient synthesis of functionalized 1,3-dihydroisobenzofurans from salicylaldehydes: Application to the synthesis of escitalopram
An efficient synthesis of substituted 1,3-dihydroisobenzofurans is developed. In this novel route, o-aroylbenzaldehydes, as key intermediates, can be obtained by lead tetraacetate oxidation of N-aroylhydrazones of salicylaldehydes. The mild and general st
Wang, Peng,Zhang, Rui,Cai, Jin,Chen, Jun-Qing,Ji, Min
p. 549 - 552
(2014/05/06)
Use of metal hydrazide complex compounds as oxidation catalysts
The present invention relates to the use of selected metal complex compounds and ligands as oxidation catalysts as well as to a process for removing stains and soil on textiles and hard surfaces. The metal complex compounds have hydrazide ligands, preferably with electron withdrawing groups in the phenyl ring adjacent to the acyl group. Further aspects of the invention are formulations comprising such metal complex compounds, novel metal complex compounds and novel ligands.
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Page/Page column 49
(2014/08/06)
SYNERGISTIC FUNGICIDAL COMPOSITIONS INCLUDING HYDRAZONE DERIVATIVES AND COPPER
The present invention relates to the use of mixtures containing hydrazone compounds and copper for controlling the growth of fungi.
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Page/Page column 27
(2010/08/08)
Mechanistic differences between in vitro assays for hydrazone-based small molecule inhibitors of anthrax lethal factor
A systematically generated series of hydrazones were analyzed as potential inhibitors of anthrax lethal factor. The hydrazones were screened using one UV-based and two fluorescence-based in vitro assays. The study identified several inhibitors with IC50 values in the micromolar range, and importantly, significant differences in the types of inhibition were observed with the different assays.
Hanna, M. Leslie,Tarasow, Theodore M.,Perkins, Julie
p. 50 - 58
(2008/09/18)
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