p-nitroanilide of benzoylacetic acid;3-oxo-3-phenyl-propionic acid-(4-nitro-anilide);3-Oxo-3-phenyl-propionsaeure-(4-nitro-anilid);Benzoylessigsaeure-<4-nitro-anilid>;4-Nitro-benzoylacetanilid;N-(4-nitrophenyl)-3-oxo-3-phenylpropanamide
对 3-含氧酸的几种苯胺在与硝酸铈铵的氧化反应中的行为的研究表明,选择性分子间 CC 键形成,导致它们的二聚体,是这些化合物的典型特征。这些二聚体在两条路线 A 和 B 中环化,产生 3-[2'-(1'-aniline-3'-oxo)-indene]-quinoline-2-on 衍生物与 HCl(g)(路线 A ),并使用 H2SO4 作为环化剂,得到呋喃-3,4-二羧酸衍生物(路线 B)。
Selective exploitation of acetoacetate carbonyl groups using imidazolium based ionic liquids: synthesis of 3-oxo-amides and substituted benzimidazoles
作者:Ankita Chakraborty、Swapan Majumdar、Dilip K. Maiti
DOI:10.1016/j.tetlet.2016.06.048
日期:2016.7
An unprecedented Brønsted base ionic liquid tuned selective aminolysis of ester carbonyl of acetoacetates is demonstrated to achieve acetoacetamide derivatives. Other imidazolium ionic liquid performs an efficient cyclization catalysis involving acetoacetate-carbonyl groups and o-phenylenediamine at elevated temperature to produce benzimidazoles via C–C bond cleavage of intermediate 1,5-benzodiazepinones
Regioselective synthesis of functionalized [1,8]naphthyridine derivatives via three-component domino reaction under catalyst-free conditions
作者:Xian Feng、Jian-Jun Wang、Juan-Juan Zhang、Cheng-Pao Cao、Zhi-Bin Huang、Da-Qing Shi
DOI:10.1039/c4gc01469c
日期:——
and efficient one-potsynthesis of functionalized [1,8]naphthyridine derivatives via a three-component domino reaction of glutaraldehyde, malononitrile, and β-ketoamides, undercatalyst-freeconditions in an environmentally friendly medium (ethanol) is described. The main advantages of this protocol are short reaction times, practical simplicity, high yields, catalyst-freeconditions, cheap and benign