A Convenient Preparation of N-Alkyl and N-Arylamines by Smiles Rearrangement—Synthesis of Analogues of Diclofenac
摘要:
Smiles rearrangement of substituted aryloxyacetamides in which oxygen and-nitrogen are separated by COCH2 group has been successful even when the aryloxy ring carries weak or no electron withdrawing group. Earlier reports of such reactions involved either strong electron withdrawing groups or a special catalyst. The diphenylamines thus obtained gave analogues of diclofenac in only one case.
Ligand-Enabled Gold-Catalyzed C(sp<sup>2</sup>)–N Cross-Coupling Reactions of Aryl Iodides with Amines
作者:Manjur O. Akram、Avishek Das、Indradweep Chakrabarty、Nitin T. Patil
DOI:10.1021/acs.orglett.9b03082
日期:2019.10.4
example of ancillary (P,N)-ligand-enabled gold-catalyzed C-N cross-couplingreactions of aryl iodides with amines is reported. The high generality of the reaction in de novo synthesis, late-stage modifications, and cascade processes to access functionalized indolinones and carbazoles underscores the synthetic potential of the presented strategy. Monitoring the reaction with ESI-HRMS and NMR provided strong
Diarylamine Synthesis via Desulfinylative Smiles Rearrangement
作者:Thomas Sephton、Jonathan M. Large、Sam Butterworth、Michael F. Greaney
DOI:10.1021/acs.orglett.1c04122
日期:2022.2.11
Diarylamines are obtained directly from sulfinamides through a novel rearrangement sequence. The transformation is transition metal-free and proceeds under mild conditions, providing facile access to highly sterically hindered diarylamines that are otherwise inaccessible by traditional SNAr chemistry. The reaction highlights the distinct reactivity of the sulfinamide group in Smilesrearrangements
二芳基胺是通过一种新的重排序列直接从亚磺酰胺中获得的。该转化不含过渡金属,在温和条件下进行,可轻松获得传统 S N Ar 化学无法获得的高度空间位阻二芳基胺。该反应突出了 Smiles 重排中的亚磺酰胺基团与更常见的磺酰胺的不同反应性。
Smiles rearrangement for the synthesis of diarylamines
A protocol for the one-pot synthesis of diarylamines via Smilesrearrangement under microwave irradiation has been developed. Various diarylamines were effectively synthesized starting from readily available substituted phenols, arylamines and chloroacetyl chloride in moderate to good yields (58–92%).
Process for the preparation of nitro diphenyl amine derivatives
申请人:Bayer Aktiengesellschaft
公开号:US04238407A1
公开(公告)日:1980-12-09
A process for the preparation of nitro-diphenyl amines is disclosed by decarboxylation of a urethane in the presence of a base at an elevated temperature using tetramethylene sulphone as reaction medium is disclosed. The urethane can be one formed by the reaction of a nitrophenol with an aromatic isocyanate.
[EN] THIENOPYRIMIDINE AND THIENOPYRIDINE DERIVATIVES USEFUL AS ANTICANCER AGENTS<br/>[FR] DERIVES DE THIENOPYRIMIDINE ET THIENOPYRIDINE UTILES COMME AGENTS ANTICANCEREUX
申请人:PFIZER PRODUCTS INC.
公开号:WO1999024440A1
公开(公告)日:1999-05-20
(EN) The invention relates to compounds of formulas (1) and (2) and to pharmaceutically acceptable salts and hydrates thereof, wherein X1, R1, R2 and R11 are as defined herein. The invention also relates to pharmaceutical compositions containing the compounds of formulas (1) and (2) and to methods of treating hyperproliferative disorders in a mammal by administering the compounds of formulas (1) and (2).(FR) L'invention concerne des composés représentés par les formules (1) et (2), et des sels et hydrates pharmaceutiquement acceptables de ces composés. X1, R1, R2 et R11 sont tels que définis dans le descriptif. L'invention concerne en outre des compositions pharmaceutiques contenant les composés des formules (1) et (2) ainsi que des traitements de troubles hyperprolifératifs chez le mammifère, comprenant l'administration des composés des formules (1) et (2).