Synthesis, Characterization and Biological Evaluation of Metal(II) Complexes Containing
Triphenylphosphine and Schiff Base Ligand Based on 3-Methoxysalicylaldehyde
Synthesis, Characterization and Biological Evaluation of Metal(II) Complexes Containing
Triphenylphosphine and Schiff Base Ligand Based on 3-Methoxysalicylaldehyde
Synthesis, composition and use of novel therapeutic and cosmetic Schiff base products formed by reaction of a carbonyl containing moeity with a transimination nucleophilic catalyst and the use of transimination nucleophilic catalysts to increase the rate at which carbonyl containing therapeutic and cosmetic actives form Schiff base products with biological amines
申请人:Isaacman Steven
公开号:US09365532B1
公开(公告)日:2016-06-14
The present invention relates to the synthesis, composition and use of novel moieties formed by reacting a transimination nucleophilic catalyst, molecular or polymeric, with carbonyl-containing therapeutic or cosmetic moieties. The resultant Schiff base product is highly reactive towards transimination with a biological amine. The catalyst and carbonyl-containing moiety can be molecular or polymeric, and the resultant chemical and physical properties of the Schiff base products can be engineered by appropriate selection of said catalyst. The present invention also relates to the synthesis, composition and use of novel moieties that are used as actives in sunless tanning preparations. The present invention also relates to the use of transimination nucleophilic catalysts to increase the rate at which a carbonyl-containing moiety reacts with a biological amine. The present invention also relates to the use of transimination nucleophilic catalysts to increase the rate and efficacy of commercial sunless tanning preparations. Improvements on stability and efficacy of said preparations are disclosed. While the invention has been described in terms of its preferred embodiments, those skilled in the art will recognize that the invention can be practiced with modification within the spirit and scope of the appended claims. Accordingly, the present invention should not be limited to the embodiments as described above, but should further include all modifications and equivalents thereof within the spirit and scope of the description provided herein.
New Insights into Photochromic Properties of <i>N</i>-Salicylideneaniline Derivatives Using a Cocrystal Engineering Approach
作者:Gabriel M. Mercier、Koen Robeyns、Nikolay Tumanov、Benoit Champagne、Johan Wouters、Tom Leyssens
DOI:10.1021/acs.cgd.9b00363
日期:2019.10.2
we aim to modify the photochromic properties of anils using a crystal engineering approach. Previous work has shown cocrystallization to alter the photochromic behavior of anils. Here, a full screening of 15 anil derivatives (including 8 newly described anils) with 21 coformers (carboxylic acids, amides, and halogenated benzene derivatives) was performed, resulting in 89 new anil cocrystals. This
Slow magnetic relaxation in a two-dimensional dysprosium(III) coordination polymer
作者:Shixiong She、Li Gong、Bo Wang、Yan Yang、Quan Lei、Beibei Liu、Gangping Su
DOI:10.1016/j.inoche.2016.05.004
日期:2016.8
Abstract A new two-dimensional (2D) dysprosium(III) coordinationpolymer, e.g. [Dy(HL)(NO3)2(H2O)]n (1, H2L = 4-[(2-hydroxy-3-methoxyphenyl)methylidene]amino}benzoic acid)), has been solvothermally synthesized and structurally characterized using single-crystal X-ray diffraction. The dysprosium ions in complex 1 display the capped trigonal prism geometry and are connected with each other through o-vanillin
A new copper(II)-based layered coordination polymer: Crystal structure, topology, QTAIM analysis, experimental and theoretical magnetic properties based on DFT combined with broken-symmetry formalism (BS-DFT)
作者:Saima Kamaal、Mohammad Usman、Mohd Afzal、Abdullah Alarifi、Arif Ali、Raja Das、Prem Lama、Musheer Ahmad
DOI:10.1016/j.poly.2020.114881
日期:2021.1
Abstract In this contribution, a 1D-copper(II) coordination polymer, [Cu(L)(H2O)2]n (1) , was synthesised by employing the Schiff base 4-[(2-hydroxy-3-methoxy-benzylidene)-amino]-benzoic acid} (H2L), which was derived from o-vanillin and 4-aminobenzoic acid. The polymer was identified by various analytical techniques, namely elemental analysis, infrared spectroscopy (IR), thermogravimetry (TGA) and
1D-Zn(II) coordinationpolymer, denoted as [Zn(L)(H2O)2]n, employing the Schiff base 4-[(2-hydroxy-3-methoxy-benzylidene)-amino]-benzoic acid} (H2L). The Schiff base was obtained through the reaction of 4-aminobenzoic acid and o-vanillin under slow volatilization conditions. The resulting compound exhibits remarkable green fluorescence emission properties, indicating its potential as a novel fluorescent