Synthetic Studies of the Derivatives of Nitroacetic Acid. III. The Synthesis of Isoxazole-3,5-dicarboxylic Acids from Schiff Bases and Nitroacetic Ester
作者:Sumio Umezawa、Shonosuke Zen
DOI:10.1246/bcsj.36.1150
日期:1963.9
5-dicarboxylic amides. This is a new synthesis of isoxazole derivatives. 2) Twenty kinds of 4-substituted isoxazole-3,5-dicarboxylic amides, including aliphatic, aromatic and heterocyclic derivatives, have been prepared. 3) Seven of the above-mentioned amides have been hydrolyzed to give the corresponding 4-substituted isoxazole-3,5-dicarboxylic acids. 4) Some Schiff bases have been described.
Macrocyclic Tetraimines: Synthesis and Reversible Uptake of Diethyl Phthalate by a Porous Macrocycle
作者:Elena Sanna、Eduardo C. Escudero-Adán、Carlos López、Pablo Ballester、Carmen Rotger、Antonio Costa
DOI:10.1021/acs.joc.6b00768
日期:2016.6.17
The imine bond has attracted much attention for the synthesis of macrocycles used to construct porous materials. In the present article, we report on the synthesis of two series of isomeric macrocyclic tetraimines based on bis-alkynylbenzene diamines. Under heterogeneous solid–liquid conditions the condensation of the diamines with isophthalaldehyde or terephthaldehyde afforded mainly the corresponding
Gold Supported on Hydroxyapatite as a Versatile Multifunctional Catalyst for the Direct Tandem Synthesis of Imines and Oximes
作者:Hao Sun、Fang-Zheng Su、Ji Ni、Yong Cao、He-Yong He、Kang-Nian Fan
DOI:10.1002/anie.200900802
日期:2009.6.2
Two birds with one auric stone: The title system acts as a highly efficient heterogeneous catalyst for the one‐pot tandemsynthesis of imines or oximes from alcohols and the corresponding amines under mild conditions (see scheme; HAP= hydroxyapatite).