10/24/2016  TCI NEWS

We distribute TCI NEWS every four weeks, to our valued customers using research chemicals and chromatography products. We hope that you find this helpful for your research.

[Brochure] Nanocarbon Materials

Nanocarbons are the simple materials that consist of carbons and hydrocarbons. Fullerene, carbon nanotube and graphene are well known as typical compounds of nanocarbon, and some compounds show the physical properties beyond the properties of metals and metal compounds.
F2031E
- Zero-dimensional (0D) fullerenes, one-dimensional (1D) nanotubes, two-dimensional (2D) graphene and the oxide, and three-dimensional (3D) nanodiamond are contained.
- Nanocarbon unit structures are also listed.
- It introduces the examples of application in the materials science field.

[Brochure] HPLC Columns

C8000E
Our unique chromatography products, "TCI Chiral" of TCI original chiral separation columns, "TCI Dual" of ODS + Ion-Exchange Mixed-Mode columns and "TCI Pack and Kaseisorb" of high performance ODS columns are listed.

TCI has a wide variety of product brochures. Most of them are available in PDF format and can be downloaded from our website.

» Other Product Brochures

[Featured Products] Olefin Metathesis Catalysts

nitro-Grela [N1060] is a ruthenium complex developed by Grela et al. and is effectively used for trans-selective olefin metathesis reactions. nitro-Grela has an isopropoxy group on a phenylvinylidene moiety offering coordination to a ruthenium metal while bearing an electron-withdrawing nitro group. From these two structural relations, the complex shows the compatible properties of stabilization of the Ru-O coordination bond and the nitro group-induced increase of a dissociation ability, which resultantly shows a larger substrate scope while maintaining the activity of typical ruthenium vinylidene complexes. AquaMet [A3009], an analogue of nitro-Grela is a catalyst that is suitable for water systems due to its quaternary ammonium group.

Synthetic Organic Chemistry

Research Article

Ni/Cu-Catalyzed Defluoroborylation of Fluoroarenes

Niwa and Hosoya et al. have reported the Ni(cod)2/CuI-catalyzed transformation of fluoroarenes to arylboronic acid pinacol esters via C−F bond cleavage. In this report, the desired arylboronic ester products are successfully synthesized by mixing fluoroarenes, bis(pinacolato)diboron ((Bpin)2), bis(1,5-cyclooctadiene)nickel(0) (Ni(cod)2), tricyclohexylphosphine (PCy3), CuI and CsF in toluene with heating at 80 °C. The ester products can be converted into various functionalized arenes through C−C, C−O, C−I, and C−N bond-forming transformations. This synthetic approach can be applied to the preparation of 18F-labeled probes for positron emission tomography (PET) imaging, and the isotope exchange of 19F-antilipemic fluvastatin derivative to the related 18F-derivative has also been achieved.
B1964, B3095

References

Product Highlight

Useful N,N-Disubstituted Cyanamides for Introducing Amidine Moieties

N,N-Disubstituted cyanamides are composed from two functional groups of secondary amides and cyano groups, and which are effectively used for introducing amidine moieties. For instance, in the presence of bipyridyl ligands and palladium catalysts, piperidine-1-carbonitrile successfully reacts with aryltrifluoroborates under microwave conditions to afford the desired aryl amidine derivatives.1) On the other hand, 1,3-bis(diphenylphosphino)propane ligand and an iron catalysts/zinc powder catalytic-system can be applied to the [2+2+2] cycloaddition of N,N-disubstituted cyanamides with diynes and the favorable 2-aminopyridine derivatives are given.2) In this reaction, not only terminal diynes but also methyl group, phenyl group and TMS group substituted diynes are applicable to this cycloaddition and the 2-aminopyridine derivatives with substitutions of a higher bulky group at the 3-position are obtained preferably. In this way, N,N-disubstituted cyanamides can be used for the synthesis of aryl amidine derivatives and multi-substituted 2-aminopyridine derivatives.
P2343,D1150,D4952

References

New Products

Bioscience

New Products

HPLC Columns “TCI Chiral series”

• A unique stationary phase
   Polymaleimide (helical polymer) bearing chiral side groups coated on silica gel.
• Suitable for separation of carbonyl compounds and the others
   ex. Ketones, Esters, Carboxylic acids, N-Protected Amino acids, Alcohols etc.
• Available for three types chiral stationary phase (MB-S, BP-S and CH-S)
• High column load capacity
• Superior column longevity [Maximum pressure: 2900 psi (20 MPa)]
• Affordable price
Pulegone
Chiral separation of Pulegone by TCI Chiral MB-S

Reagent Guides 8th Edition

In these Reagent Guides, TCI products have been classified according to research fields, reaction types, applications and basic structures. Please click here to contact TCI local distributors or TCI for a Free Copy!
Synthetic Organic Chemistry & Materials Chemistry

Classification examples:

Synthetic Organic Chemistry
Asymmetric Organocatalysts / Cross-coupling Reaction Using Transition Metal Catalysts / Condensation & Active Esterification

Materials Chemistry
Solar Cell Research Reagents / OLED / Photochromic Compounds
Bioscience & Analytical Science

Classification examples:

Bioscience
Nucleosides / Amino Acids / Sugars / Lipids / Terpenes / Steroids / Antibodies

Analytical Science
GC Derivatizing Reagents / HPLC Labeling Reagents / HPLC Columns / Derivatization Reagents for MS

TCI has a wide variety of catalogs and product brochures. Most of them are available in PDF format and can be downloaded from our website.

» Other Catalogs & Product Brochures

TCI Website Tips

Reagent Guide - Online Version Available on TCI Website

TCI Reagent Guides, product catalogs by category, are very useful as reference for finding reagents. Do you know Reagent Guides are also available as online version on our website?
You click “Products” tab, then you can go around our product information by category easily.

Additionally, benefits of online catalogs include;
-New products that aren't included in the paper version are added every day.
-Product categories that aren’t included in the paper version are available, and new categories are uploaded timely.

Please click the following product categories, and find your chemicals!

Exhibitions/Meetings/Shows

RadTech Asia 2016

Hilton Tokyo Odaiba
Tokyo, Japan
October 25-27, 2016
» TCI exhibition information      » Event details

The 11th International Conference of Cutting-Edge Organic Chemistry in Asia (The 11th ICCEOCA)

Daejeon, Korea
October 27-30, 2016
» TCI exhibition information      » Event details

Sialoglyco2016

The Fess Parker Doubletree Resort
Santa Barbara, California, USA
November 14–17, 2016
» TCI exhibition information      » Event details

Society for Glycobiology 2016 Annual Meeting

Hilton New Orleans Riverside
New Orleans, Louisiana, USA
November 19–22, 2016
» TCI exhibition information      » Event details

Other Information

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