Thermal rearrangement of 2,3-diaryl-1-phthalimidoaziridines
作者:Alena S. Pankova、Mariia V. Sorokina、Mikhail A. Kuznetsov
DOI:10.1016/j.tetlet.2015.07.093
日期:2015.9
ziridines and 2,3-diaryl-1-phthalimidoaziridine-2-carbonitriles were found to readily undergo thermalrearrangement into imines via 1,2-migration of the phthalimido group and accompanying C–C bond cleavage. Isomerization proceeds regioselectively with preferable migration to the electron-deficient carbon atom. Interestingly, this reaction was found to predominate even in the presence of dipolarophiles
Highly active g-C<sub>3</sub>N<sub>4</sub> as a solid base catalyst for knoevenagel condensation reaction under phase transfer conditions
作者:Priti Sharma、Yoel Sasson
DOI:10.1039/c7ra03051g
日期:——
promising approach, heterogeneous g-C3N4 as a solid base catalyst exhibits appreciable activity in Knoevenagel condensations at room temperature for the synthesis of substituted stilbene in presence of a crown-ether phasetransfer catalyst. High yield of the product substituted stilbene were isolated in a very short reaction time period (∼30 min). The solid base g-C3N4 catalyst was proven to be recyclable
在一种有前途的方法中,作为固体碱催化剂的多相gC 3 N 4在室温下的Knoevenagel缩合中显示出明显的活性,用于在冠醚相转移催化剂存在下合成取代的苯乙烯。在很短的反应时间(约30分钟)内分离出高产率的取代苯乙烯的产物。固态碱gC 3 N 4催化剂经证实可循环使用多次。使用多相碱式gC 3 N 4催化剂筛选了各种芳族底物,在室温下显示出可观的相应产物收率(〜99%)。
Monoalkylations with alcohols by a cascade reaction on bifunctional solid catalysts: Reaction kinetics and mechanism
作者:Avelino Corma、Tania Ródenas、María J. Sabater
DOI:10.1016/j.jcat.2011.01.029
日期:2011.4
process involves a series of three cascade reactions occurring on different catalytic sites. The alcohol undergoes oxidation to the corresponding aldehyde with the simultaneous formation of a metal hydride; then, the aldehyde reacts with a nucleophile formed “in situ” to give an alkene, and finally, the hydrogen from the hydride is transferred to the alkene to give a new C–C bond. A kineticstudy on the
Synthesis of Heterocyclic Ketene N,S-Acetals and Their Reactions with α,β-Unsaturated Nitriles
作者:Ahmed K. El-Shafei、Ahmed M. M. El-Saghier、Ahmed M. Soliman
DOI:10.1135/cccc19951065
日期:——
Substituted 3H-pyrido[2,1-b]benzoxazoles and 3H-pyrido[2,1-b]benzothiazoles were prepared by base catalyzed cycloaddition of benzylidenemalonitrile with benzoxazolylidene- or benzothiazolylidenepentane-1,3-dione.
The present invention provides compounds which can regulate VCP activity. The present invention provides the compound of formula (I)
(R is as defined in the description)
or oxides, esters, prodrugs, pharmaceutically acceptable salts or solvates thereof. The compounds can regulate VCP activity, and thus are useful for treating VCP-mediated diseases such as neurodegenerative diseases.