Bi(thipohene)-type ligand and its silver coordination polymers [AgL2]·(X) (L=1,2-bis((thiophen-3-yl)methylene)hydrazine; )
摘要:
A novel linking ligand, 1,2-bis((thiophen-3-yl)methylene)hydrazine (L), which contains terminal thiophene rings, was prepared. From ligand L and silver salts AgX, the corresponding 2-D silver coordination polymers [AgL2] center dot (X) [X = ClO4- (1), SbF6- (2), PF6- (3)] could be prepared. All polymers have been constructed by van der Waals contacts, and their structures depend basically on the nature of the counterions used. (c) 2007 Elsevier B.V. All rights reserved.
Thermolysis of Sodium Salts of Tosylhydrazones of Some Heterocyclic Aldehydes in the Presence of Silver Chromate: 1,3 NŮC Migration of Tosyl Group
作者:Katsuhiro Saito、Hiraku Ishihara
DOI:10.3987/r-1987-07-1891
日期:——
An expeditious synthetic approach towards the synthesis of Bis-Schiff bases (aldazines) using ultrasound
作者:Khalid M. Khan、Waqas Jamil、Nida Ambreen、Muhammad Taha、Shahnaz Perveen、Guillermo A. Morales
DOI:10.1016/j.ultsonch.2013.12.011
日期:2014.5
Aldazines (Bis-Schiff bases) 1-24 were synthesized using aromatic aldehydes (heterocyclic and benzaldehydes) and hydrazine hydrate under reflux using conventional heating and/or via ultrasound irradiation using BiCl3 as catalyst. Ultrasonication conditions with cat. BiCl3 proved to be an effective, environmentally friendly synthetic procedure. This methodology is robust in the presence of electron donating and electron withdrawing groups affording desired products with high yields (>95%) in just a couple of minutes vs. hours using conventional heating. (C) 2013 Elsevier B.V. All rights reserved.