Reaction of 2-azidobenzothiazole and 1-azido-4-(3′,5′-dimethyl-1′-pyrazolyl)tetrafluorobenzene with [60]fullerene and characterization of the adducts by fast-atom bombardment mass spectrometry
By FAB-MS and 13C NMR spectroscopy the structures of three new imino[60]fullerenes have been established: two monoadducts 5 (σ-azaridinefullerene) and 7 (π-azafullaroid) and one bisadduct (π-bisazafullaroid) 8.
通过FAB-MS和13 C NMR光谱学,已经建立了三种新的亚氨基[60]富勒烯的结构:两个单加合物5(σ-阿扎替丁富勒烯)和7(π-氮杂富勒烯)和一个双加合物(π-双氮杂富勒烯)8。
Henrie, Robert N.; Yeager, Walter H., Heterocycles, 1993, vol. 35, # 1, p. 415 - 426
作者:Henrie, Robert N.、Yeager, Walter H.
DOI:——
日期:——
Application and developing of iron‐doped multi‐walled carbon nanotubes (Fe/MWCNTs) as an efficient and reusable heterogeneous nanocatalyst in the synthesis of heterocyclic compounds
Iron‐dopedmulti‐walledcarbonnanotubes (Fe/MWCNTs) is an efficient, ecofriendly and reusableheterogeneousnanocatalyst for the one‐pot synthesis of heterocycliccompounds including bis‐spiro piperidines, piperidines, dihydro‐2‐oxopyrroles, pyrazoles and diazepines at room temperature with good to excellent yields. The heterogeneousnanocatalyst was fully characterized by scanning electron microscopy
铁掺杂的多壁碳纳米管(Fe / MWCNTs)是一种高效,生态友好且可重复使用的多相纳米催化剂,用于在室温下单锅合成杂环化合物,包括双螺哌啶,哌啶,二氢-2-氧吡咯,吡唑和二氮杂s温度高到极好的产量。通过扫描电子显微镜(SEM),X射线衍射(XRD),电感耦合等离子体(ICP)和FT-IR分析充分表征了多相纳米催化剂。同样,所有制备的化合物的结构均通过1 H NMR表征,13C NMR,FT-IR,质谱(MS)和元素分析。这些规程的主要优点是温和且绿色的反应条件,较短的反应时间,清洁的反应,操作简单,易于纯化以及可重复使用的多相纳米催化剂的产率高至优异。将该催化剂循环十次而活性没有明显损失。
A mild and efficient method for halogenation of 3,5-dimethyl pyrazoles by ultrasound irradiation using N-halosuccinimides
作者:Hélio A. Stefani、Claudio M.P. Pereira、Roberta B. Almeida、Rodolpho C. Braga、Karla P. Guzen、Rodrigo Cella
DOI:10.1016/j.tetlet.2005.08.027
日期:2005.10
The 4-halo-3,5-dimethyl pyrazoles have been synthetisized in good yields in short reaction times in the absence of a catalyst by reaction of 3,5-dimethyl pyrazoles with N-halosuccinimides (NBS, NCS and NIS) under ultrasound irradiation. Finally, the halogenation of pyrazoles with Br2, ICl and I2 was showed in similar conditions.