A Switch-On fluorescent probe for detection of mesotrione based on the straightforward cleavage of carbon-nitrogen double bond of Schiff base

2022 ◽  
Vol 430 ◽  
pp. 132758
Author(s):  
Yulong Liu ◽  
Lu Li ◽  
Mingli Yue ◽  
Liu Yang ◽  
Fang Sun ◽  
...  
Keyword(s):  
Schiff Base ◽  
Double Bond ◽  
Fluorescent Probe ◽  
Nitrogen Double Bond

Direct Synthesis of Aromatic Imine Schiff Bases from β-Phenol Hydroxy Ketone

2021 ◽  
Vol 18 ◽  
Author(s):  
Chang Liu ◽  
Haomin Wu ◽  
Feng Feng ◽  
Wenyuan Liu ◽  
Xueyang Jiang
Keyword(s):  
Natural Products ◽  
Schiff Base ◽  
Double Bond ◽  
Direct Synthesis ◽  
Hydroxy Ketone ◽  
Hydroxyl Groups ◽  
Water Based ◽  
Low Toxicity ◽  
Nitrogen Double Bond ◽  
Halogenated Phenol

: A facile methodology has been developed to build carbon nitrogen double bond from ketones promoted by the hydroxyl groups in β-phenol hydroxy ketone. It is noteworthy that the halogenated β-phenol hydroxy ketone can chemoselectively react with amine to afford halogenated phenol imine. It is suitable for certain natural products and also suitable for water-based heteroamines. The method is low toxicity, widely applicable. This strategy is usually used to obtain moderate to good yields of aromatic amine Schiff base.

MNDO CI study of the photoisomerization of pentadieniminium

1990 ◽  
Vol 55 (12) ◽  
pp. 2874-2879 ◽  
Author(s):  
Peter Ertl
Keyword(s):  
Schiff Base ◽  
Double Bond ◽  
Configuration Interaction ◽  
Mndo Method ◽  
Double Bonds

Photoisomerization mechanism in model retinal-like protonated Schiff base pentadieniminium was investigated by using MNDO method with configuration interaction. Isomerizations around various double bonds were studied and twisted biradical geometries in S0 and S1 states were optimized. Photoisomerization proceeds exclusively around the central double bond where the twisted S1 state is strongly stabilized and the S0-S1 gap is minimal.

AIE-active Schiff base compounds as fluorescent probe for the highly sensitive and selective detection of Al3+ ions

2021 ◽  
Vol 233 ◽  
pp. 117911
Author(s):  
Minmin Wang ◽  
Linxia Lu ◽  
Wenwu Song ◽  
Xunyue Wang ◽  
Tongming Sun ◽  
...  
Keyword(s):  
Schiff Base ◽  
Fluorescent Probe ◽  
Selective Detection ◽  
Highly Sensitive

scholarly journals A pH tuning single fluorescent probe based on naphthalene for dual-analytes (Mg2+ and Al3+) and its application in cell imaging

RSC Advances ◽  
2020 ◽  
Vol 10 (36) ◽  
pp. 21399-21405
Author(s):  
Chunwei Yu ◽  
Shuhua Cui ◽  
Yuxiang Ji ◽  
Shaobai Wen ◽  
Li Jian ◽  
...  
Keyword(s):  
Schiff Base ◽  
Fluorescent Probe ◽  
Cell Imaging ◽  
Quantitative Detection

In this study, a naphthalene Schiff-base P which serves as a dual-analyte probe for the quantitative detection of Al3+ and Mg2+ has been designed.

A photochromic–acidochromic HCl fluorescent probe. An unexpected chloride-directed recognition

The Analyst ◽  
2016 ◽  
Vol 141 (13) ◽  
pp. 4108-4120 ◽  
Author(s):  
Arturo Jiménez-Sánchez ◽  
Rosa Santillan
Keyword(s):  
Schiff Base ◽  
Fluorescent Probe ◽  
Specific Interactions

A fluorescent-chromogenic Schiff base probe displays multiresponsive properties and specific interactions with HCl giving an acidofluorochromic response to light (photochromism) and the nature of the solvent (solvatochromism).

Configuration stability at the carbon-nitrogen double bond

1962 ◽  
Vol 3 (26) ◽  
pp. 1269-1274 ◽  
Author(s):  
D.Y. Curtin ◽  
C.G. McCarty
Keyword(s):  
Double Bond ◽  
Nitrogen Double Bond

Mechanisms of Nucleophilic Attack at Carbon Nitrogen Double-Bonds: The Reaction of Benzohydrazonoyl Halides With Amines

1987 ◽  
Vol 40 (10) ◽  
pp. 1777 ◽  
Author(s):  
AF Hegarty ◽  
P Rigopoulos ◽  
JE Rowe
Keyword(s):  
Double Bond ◽  
Nucleophilic Attack ◽  
Rate Data ◽  
Double Bonds ◽  
Nitrogen Double Bond

Rate data for the reaction of a series of benzohydrazonoyl halides with pyrrolidine and butan- 1-amine at 303 K are presented. Linear Hammett plots were obtained with each amine. The mechanism of the reactions and the stereochemical outcome of these displacements at the carbon-nitrogen double bond are discussed.

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