Synthesis and structure of lipophilic dioxo-molybdenum (VI) bis(hydroxamato) complexes
作者:Valeriy I. Dzyuba、Lyudmila I. Koval、Vladimir V. Bon、Vasyl I. Pekhnyo
DOI:10.1016/j.poly.2010.07.014
日期:2010.10
New methods for the synthesis of complexes of molybdenyl with hydrophobic alkyl-substituted hydroxamic acids have been developed. A number of novel coordination compounds of the general formula MoO2L2 (where HL is decano-, N-methyl-decano-, N-methyl-hexano-, N-methyl-1-adamantano- and N-tert-butyl-hexanohydroxamic acids) have been synthesized. All compounds obtained have been characterized by IR, 1H
已经开发了用于合成钼烯基与疏水性烷基取代的异羟肟酸的络合物的新方法。许多通式为MoO 2 L 2的新型配位化合物(其中HL为癸基,N-甲基-癸基,N-甲基-己基,N-甲基-1-金刚烷-和N-叔丁基-已合成己二酸。所获得的所有化合物已经通过IR,1 H NMR光谱和X射线晶体学进行了表征。讨论了供电子和配位体取代基的空间性质对配合物结构的影响。
Copper-Catalyzed Aminoheteroarylation of Unactivated Alkenes through Distal Heteroaryl Migration
作者:Yungeun Kwon、Wei Zhang、Qiu Wang
DOI:10.1021/acscatal.1c01001
日期:2021.7.16
We report a copper-catalyzed aminoheteroarylation of unactivatedalkenes to access valuable heteroarylethylamine motif. The developed reaction features a copper-catalyzed intermolecular electrophilic amination of the alkenes followed by a migratory heteroarylation. The method applies to alcohol-, amide-, and ether-containing alkenes, overcoming the common requirement of a hydroxyl motif in previous
The Thermal Decomposition of<i>N</i>,<i>O</i>-Diacyl-<i>N</i>-<i>t</i>-butylhydroxylamines. IV. A Novel Acyloxyl Migration in<i>N</i>,<i>O</i>-Diacyl-<i>N</i>-<i>t</i>-butylhydroxylamines
作者:Yuzuru Uchida、Seizi Kozuka
DOI:10.1246/bcsj.55.2681
日期:1982.8
O-diacyl-N-t-butylhydroxylamines were prepared, and their thermaldecompositions were studied. N-Propionyl-O-benzoyl-N-t-butylhydroxylamine gave N-t-butyl-2-benzoyloxypropanamide, together with the decomposition products, N-t-butylpropanamide and benzoic acid, upon thermaldecomposition in tetralin. Similar benzyloxyl migrations were found in the thermaldecomposition of N-butyryl, N-valeryl, and N-(3-phenylpropionyl)
The Thermal Decomposition of<i>N</i>,<i>O</i>-Diacyl-<i>N</i>-<i>t</i>-butylhydroxylamines
作者:Yuzuru Uchida、Yukinobu Hashimoto、Seizi Kozuka
DOI:10.1246/bcsj.53.2309
日期:1980.8
Several N,O-diacyl-N-t-butylhydroxylamines and O-acyl-N-t-butylhydroxylamines were prepared, and their thermal decompositions were studied. The thermal decompositions of N,O-diacyl-N-t-butylhydroxylamines in tetralin gave substituted N-t-butylbenzamides, carboxylic acids, 1,1′-bitetralyl, and 1,2-dihydronaphthalene as the major products, together with small amounts of carbon dioxide, t-butylamine, and benzanilides. In the thermal decompositions of O-acyl-N-t-butylhydroxylamines, the products were t-butylamine, carboxylic acids, substituted N-t-butylbenzamides, 1,1′-bitetralyl, and 1,2-dihydronaphthalene.
Copper‐Catalyzed Transsulfinamidation of Sulfinamides as a Key Step in the Preparation of Sulfonamides and Sulfonimidamides
作者:Hao Yu、Zhen Li、Carsten Bolm
DOI:10.1002/anie.201810548
日期:2018.11.19
sulfinamides are prepared by copper‐catalyzed transsulfinamidation of primary sulfinamides with O‐benzoyl hydroxylamines. Subsequent oxidations of the resulting products lead to the corresponding sulfonamides. Treatment of N‐aryl sulfinamides with O‐benzoyl hydroxylamines under copper catalysis provides N‐aryl sulfonimidamides.