Zn(ii) promoted dramatic enhancement in the enantioselective fluorescent recognition of functional chiral amines by a chiral aldehyde

2014 ◽  
Vol 5 (9) ◽  
pp. 3457-3462 ◽  
Author(s):  
Zeng Huang ◽  
Shanshan Yu ◽  
Kaili Wen ◽  
Xiaoqi Yu ◽  
Lin Pu
Keyword(s):  
Methanol Solution ◽  
Chiral Amines ◽  
Fluorescent Recognition

The addition of Zn2+ to the methanol solution of a BINOL-based chiral dialdehyde leads to dramatically enhanced enantioselective fluorescent responses toward various functional chiral amines, representing one of the first chiral aldehydes capable of such recognition.

The morphologies and electrical properties of indium contacts on (100) cadmium telluride surfaces

1992 ◽  
Vol 50 (2) ◽  
pp. 1422-1423
Author(s):  
A.M. Letsoalo ◽  
M.E. Lee ◽  
E.O. de Neijs
Keyword(s):  
Electrical Properties ◽  
Cadmium Telluride ◽  
Methanol Solution ◽  
Electrical Characteristics ◽  
Metal Contacts ◽  
Deposition Technique ◽  
Interfacial Layers ◽  
Semiconductor Contacts ◽  
Grown Single Crystal ◽  
Diamond Abrasive

Semiconductor devices require metal contacts for efficient collection of electrical charge. The physics of these metal/semiconductor contacts assumes perfect, abrupt and continuous interfaces between the layers. However, in practice these layers are neither continuous nor abrupt due to poor nucleation conditions and the formation of interfacial layers. The effects of layer thickness, deposition rate and substrate stoichiometry have been previously reported. In this work we will compare the effects of a single deposition technique and multiple depositions on the morphology of indium layers grown on (100) CdTe substrates. The electrical characteristics and specific resistivities of the indium contacts were measured, and their relationships with indium layer morphologies were established.Semi-insulating (100) CdTe samples were cut from Bridgman grown single crystal ingots. The surface of the as-cut slices were mechanically polished using 5μm, 3μm, 1μm and 0,25μm diamond abrasive respectively. This was followed by two minutes immersion in a 5% bromine-methanol solution.

Experimental Venous Thrombosis in Rats

1963 ◽  
Vol 09 (02) ◽  
pp. 427-435 ◽  
Author(s):  
Arne Nordöy
Keyword(s):  
Body Weight ◽  
Platelet Count ◽  
Single Dose ◽  
Jugular Vein ◽  
Methanol Solution ◽  
Fibrinogen Concentration ◽  
Moderate Increase ◽  
Slight Effect ◽  
Plasma Coagulation ◽  
Global Tests

Summary1. Thrombosis in rats were produced by Blake et al.’s technique of application of formalin solution to the jugular vein. The incidence of thrombosis produced by a 10% (v/v) formalin in 65% methanol solution and observed after 24 hours was 30% ± 4.6 S. D.2. The administration of 100 mg EACA 1,000 g body weight orally every fourth hour for 24 hours increased the incidence of thrombosis about twice (to about 65%).A single dose of 400 mg EACA 1,000 g body weight had a slight effect only.3. EACA increased markedly the antifibrinolytic activity in plasma with a maximum after 3—5 hours oral administration. A moderate increase in the fibrinogen concentration was observed in all groups.4. Global tests for plasma coagulation, the platelet count and the number of adhesive platelets were not significantly influenced by the administration of EACA.

Iminophosphorane-mediated regioselective umpolung alkylation reaction of α-iminoesters

2021 ◽  
Author(s):  
Yasushi Yoshida ◽  
Mayu Kukita ◽  
Kazuki Omori ◽  
Takashi Mino ◽  
Masami Sakamoto
Keyword(s):  
Asymmetric Reactions ◽  
Alkylation Reaction ◽  
Chiral Amines ◽  
Efficient Manner

Umpolung reactions of imines, especially the asymmetric reactions, have been extensively studied as they provide access to important chiral amines in an efficient manner. The reactions studied range from simple...

Biocatalytic Synthesis of Chiral Amines Using Oxidoreductases

2021 ◽  
pp. 243-283
Author(s):  
Sebastian C. Cosgrove ◽  
Jeremy I. Ramsden ◽  
Juan Mangas‐Sanchez ◽  
Nicholas J. Turner
Keyword(s):  
Chiral Amines

Chiral Arylated Amines via C‐N Coupling of Chiral Amines with Aryl Bromides Promoted by Light

2021 ◽  
Author(s):  
Dong Xue ◽  
Geyang Song ◽  
Liu Yang ◽  
Jing-Sheng Li ◽  
Wei-Jun Tang ◽  
...  
Keyword(s):  
Chiral Amines ◽  
Aryl Bromides

Insight into the existing form of glycolaldehyde in methanol solution: an experimental and theoretical investigation

2021 ◽  
Author(s):  
Ce Hao ◽  
Yuehui Li ◽  
Yantao Shi ◽  
Xuedan Song ◽  
Zhengyan Zhao ◽  
...  
Keyword(s):  
Theoretical Investigation ◽  
Methanol Solution ◽  
Aldehyde Groups ◽  
Existing Form ◽  
Insight Into

Glycolaldehyde (HOCH2CHO, GA), the simplest molecule containing both hydroxyl and aldehyde groups, is structurally the most elementary member of the monosaccharide sugars, which may provide new clues for probing the...

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