107701-40-6Relevant articles and documents
BORONIC ACID-BASED COMPOUND AND METHOD FOR PREPARATION THEREOF
-
Paragraph 0084; 0088; 0125-0130, (2019/01/04)
The present invention relates to a boronic acid-based compound and a preparation method thereof. More specifically, the present invention provides: a derivative containing boronic acid and imidazole obtained by substituting various functional groups during a synthesizing process of a boronic acid-based compound; and a preparation method of the derivative in high yield without using an oxidant.COPYRIGHT KIPO 2018
Novel charge-transfer chromophores featuring imidazole as Π-linkage
Patel, Anjan,Bures, Filip,Ludwig, Miroslav,Kulhanek, Jiri,Pytela, Oldrich,Ruzicka, Ales
experimental part, p. 999 - 1013 (2009/09/30)
Overall 21 imidazole-based chromophores have been synthesized and fully characterized. The imidazole core was systematically substituted with donors (NMe2 and OMe) and acceptors (NO2 and CN groups) additionally separated from the imi
Crystal structures and solution spectroscopy of lophine derivatives
Fridman, Natalya,Kaftory, Menahem,Eichen, Yoav,Speiser, Shammai
experimental part, p. 101 - 109 (2009/04/07)
Lophine (2,4,5-triphenylimidazole) derivatives were synthesized and their physicochemical properties were determined. Spectroscopic and fluorescence behavior of lophine derivatives in methanol at different pH and various solvents were presented. The observed spectroscopic features in the solution are determined by specific interactions of the NH hydrogen. These kinds of interactions are manifested both in the solid state and in solution. The crystal and molecular structures of lophine derivatives with different solvents of crystallization are presented and discussed. In all solvates the solvent molecules link host molecules through hydrogen bonds.
Chromotropism of Imidazole Derivatives. Part 1. 4,5-Bis-(4-methoxyphenyl)-2-(4-nitrophenyl)imidazolium Acetate Dihydrate
Sakaino, Yoshiko,Takizawa, Toshiharu,Inouye, Yoshinobu,Kakisawa, Hiroshi
, p. 1623 - 1630 (2007/10/02)
4,5-Bis(4-methoxyphenyl)-2-(4-nitrophenyl)imidazolium acetate dihydrate (1) in the crystalline state exhibits a sensitive colour change from orange-yellow to red on treatment by various methods (drying, trituration, or heating).The colour change was reversible below 70 deg C but above 70 deg C the change was irreversible and the colour deepended.Compound (1) was deprotonated with the loss of one mole of water of crystallization under treatment and can revert to the original by absorption of one mole of water.On heating to 100 deg C, (1) lost all solvent of crystallization to give a deep red material (2). (2) Was considered to be 4,5-bis-(4-methoxyphenyl)-2-(4-nitrophenyl)imidazole which was linked by hydrogen bond from the imino group in one molecule to the nitro oxygen in another.Compound (2) reverted to (1) in saturated AcOH-H2O vapour.