Addition of a carbamoylsilane to N-sulfonylimines: direct synthesis of α-(N-sulfonyl)amino-N-methoxymethyl-N-methylamides
摘要:
N-Methoxymethyl-N-methylcarbamoyl(trimethyl)silane reacted with N-sulfonylimines in anhydrous benzene under catalyst-free conditions to afford alpha-(N-sulfonyl)amino-N-methoxymethyl-N-methylamides in good to excellent yields (71-95%). Furthermore, after acid hydrolysis at room temperature, the corresponding alpha-(N-sulfonyl)amino secondary amides can be formed. (C) 2015 Elsevier Ltd. All rights reserved.
Nickel‐catalyzed aminocarbonylation of aryl halides with carbamoylsilanes: efficient synthesis of secondary (primary) aromatic amides
作者:Xueping Wen、Wenwen Chen、Jianxin Chen
DOI:10.1002/aoc.5174
日期:2019.11
nickel‐catalyzed aminocarbonylation of aryl halides using carbamoylsilane as an amide source leading to corresponding secondary or primary aromatic amides has been developed, in which the methoxymethyl and benzyl were used as amino protecting group. The protocol tolerates a broad range of aryl halides bearing different functional groups to afford good yields of aryl amidesunder mild reaction conditions. The types
Synthesis of Secondary Aromatic Amides via Pd-Catalyzed Aminocarbonylation of Aryl Halides Using Carbamoylsilane as an Amide Source
作者:Wenting Tong、Pei Cao、Yanhong Liu、Jianxin Chen
DOI:10.1021/acs.joc.7b01028
日期:2017.11.3
ethyl)silanes as secondary amides source, the direct transformation of aryl halides into the corresponding secondary aromaticamidesvia palladium-catalyzed aminocarbonylation is described. The reactions tolerated a broad range of functional groups on the aryl ring except big steric hindrance of substituent. The types and the relative position of substituents on the aryl ring impact the coupling efficiency
Selective Addition of Carbamoylsilane to Vicinal Diketones: Highly Efficient Synthesis of β-Keto-α-hydroxyamides
作者:Jianxin Chen、Pei Cao、Xueping Wen
DOI:10.1055/s-0036-1588346
日期:——
The selective addition of carbamoylsilane to vicinal diketones in toluene solvent at 110 °C affords β-keto-α-siloxyamide derivatives in good yields (54–99%). The sterichindrance is an important factor in the addition reaction.
在 110 °C 的甲苯溶剂中,将氨基甲酰基硅烷选择性加成到邻位二酮中,以良好的产率 (54-99%) 得到 β-酮-α-甲硅烷氧基酰胺衍生物。位阻是加成反应中的一个重要因素。
Selective C H functionalization of electron-deficient aromatics by carbamoylsilanes: synthesis of aromatic carbinolamines or amides
作者:Yanhong Liu、Pei Cao、Jianxin Chen
DOI:10.1016/j.tetlet.2016.01.058
日期:2016.2
Selective CH functionalization of electron-deficient aromatics with various carbamoylsilanes is developed under catalysts-free conditions. These transformations provide a facile and efficient method for synthesizing some tertiary or secondary aromatic carbinolamines and amides in good yields.
Nickel-catalyzed aminocarbonylation of aryl halides using carbamoylsilane as an amide source
作者:Xue-Ping Wen、Yu-Ling Han、Jian-Xin Chen
DOI:10.1039/c7ra08009c
日期:——
The nickel-catalyzed aminocarbonylation of arylhalides using carbamoylsilane as an amide source is developed. The procedure can prepare both tertiary and secondary amides, and is applicable to various carbamoylsilanes and arylhalides containing different functional groups. The types and the relative position of substituents on the aryl ring impact the coupling efficiency.