各种酚与苯甲酰氯的反应得到苯甲酸苯酯的衍生物,随后对其进行弗里斯重排。将获得的2-羟基二苯甲酮类似物与线性脂族三胺结合,得到五齿席夫碱配体。此外,九种新的铁(III)络合物与通式的[Fe(L Ñ)X](其中,L Ñ是五齿席夫碱配体的二价阴离子,Ñ,Ñ ' -双((2-羟基-5-甲基苯基)苯基)亚甲基-1,5-二氨基-3-氮杂戊烷= H 2 L 1,N,N'-双((2-羟基-3,5-二甲基苯基)苯基)亚甲基-1,5-二氨基-3 -氮杂戊烷= H2 L 2, N, N'-双((2-羟基-5-氯苯基)苯基)亚甲基-1,5-二氨基-3-氮杂戊烷= H 2 L 3, N, N'-双((2-羟基-4-甲基苯基)苯基)亚甲基-1,5-二氨基-3-氮杂戊烷= H 2 L 4, N, N'-双((2-羟基-5-溴苯基)苯基)亚甲基-1,7-二氨基- 4-氮杂庚烷= H 2 L 5, N, N'-双((2-羟基-5-溴苯基)苯基)亚甲基-1
Solid-Phase Benzoylation of Phenols and Alcohols in Microwave Reactor: An Ecofriendly Protocol
作者:Suchandra Chakraborty、Ahana Saha、Kaushik Basu、Chandan Saha
DOI:10.1080/00397911.2015.1078899
日期:2015.10.18
Abstract An efficient solid-phase benzoylation of phenols and alcohols was developed under microwave irradiation. A stoichiometric amount of benzoyl chloride was sufficient to carry out the reaction. This benzoylation features short reaction time, good yields, and easy workup procedures. Furthermore, the scope of the reaction was extended to prepare 3,5-dinitrobenzoyl derivatives of alcohols. GRAPHICAL
4-(<i>N,N</i>-Dimethylamino)pyridine Hydrochloride as a Recyclable Catalyst for Acylation of Inert Alcohols: Substrate Scope and Reaction Mechanism
作者:Zhihui Liu、Qiaoqiao Ma、Yuxiu Liu、Qingmin Wang
DOI:10.1021/ol4030875
日期:2014.1.3
4-(N,N-Dimethylamino)pyridine hydrochloride (DMAP·HCl), a DMAP salt with the simplest structure, was used as a recyclablecatalyst for the acylation of inert alcohols and phenols under base-free conditions. The reaction mechanism was investigated in detail for the first time; DMAP·HCl and the acylating reagent directly formed N-acyl-4-(N′,N′-dimethylamino)pyridine chloride, which was attacked by the
Palladium-catalyzed aerobic oxidative aminocarbonylation and alkoxycarbonylation reactions with aryl hydrazines as coupling partners have been developed. The oxidative carbonylation of aryl hydrazines proceeded smoothly at atmospheric pressure CO, employing molecular oxygen as the terminal oxidant. The only byproducts were nitrogen gas and water for both reactions. Notably, no double carbonylation
[EN] 2-(2,2-DIARYLETHYL)-CYCLIC AMINE DERIVATIVE OR SALT, SYNTHESIS THEREOF, AND APPLICATION AND COMPOSITION THEREOF<br/>[FR] DÉRIVÉ D'AMINE 2-(2,2-DIARYLÉTHYLE)-CYCLIQUE, SYNTHÈSE DE CELUI-CI, UTILISATION ET COMPOSITION ASSOCIÉES<br/>[ZH] 一种2-(2,2-二芳基乙基)-环胺衍生物或盐及合成和应用与组合物