12/15/2014  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.

Air-Stable Emissive Disilenes Protected by Fused-Ring Bulky “Rind” Groups

TCI commercialized two disilene compounds.

These disilenes are novel air-stable disilenes by using bulky groups based on a fused-ring (Rind groups) that were developed by Prof. Matsuo (Department of Applied Chemistry, Faculty of Science and Engineering, Kinki University) and Prof. Tamao (Director, Advanced Science Institute) et al.
They show remarkable emission at room temperature, and they are expected to become a new platform for the development of functional organic materials and devices.
Air-Stable Emissive Disilenes Protected
Fused-ring protective groups (Rind groups) are also line up.

Exhibitions/Meetings/Shows

We are very pleased to announce that TCI will attend the conference in December, 2014.

SICC-8 International Chemistry Conference -Singapore- From Dec. 14-17, 2014

Please visit our booth at your convenience and share with us any issues you are having with your research!
8th Singapore International Chemistry Conference 2014
National University of Singapore
Singapore
December 14-17, 2014
» TCI exhibition information      » Event details

Synthetic Organic Chemistry

Research Article

Metal-Free Fluorination of C(sp3)-H Bonds using a Catalytic N-Oxyl Radical

  Inoue et al. have reported the metal-free fluorination of C(sp3)—H bonds using NDHPI and F-TEDA-BF4. According to their results, a catalytic N-oxyl radical generated from NDHPI extracts hydrogen from the C(sp3)—H bond, and the resulting carbon radical is trapped by F-TEDA-BF4 to form the C(sp3)—F bond. This protocol is useful for the synthesis of various fluorinated compounds because it enables the chemoselective introduction of a fluorine atom into various aromatic and aliphatic compounds.
D4413,F0358

References

Y. Amaoka, M. Nagatomo, M. Inoue, Org. Lett. 2013, 15, 2160.

New Products

Bioscience

Product Highlight

Natural Dye for Insect's Solar Energy Harvesting

 The term pteridine is generally used to refer to hetero-bicyclic compounds containing four nitrogen atoms. Specifically, the structure of 2-amino-4-hydroxypteridine is known as pterin, whose derivatives are found in many kinds of organisms.1) Pterins substituted by long side chains at the 6-position are classified as "conjugated" pterins and include folic acid, famous for vitamin B9 and the folate metabolism antagonists: aminopterin and methotrexate. On the other hand, in "unconjugated" pterins substituted by short side chains, there are lumazine, a basic skeleton of dye blue-shifting bacterial luciferase luminescence; tetrahydrobiopterin, an essential cofactor of the aromatic amino acid hydroxylases, etc.


 Xanthopterin is an "unconjugated" pterin isolated as the yellow dye of butterfly wings by H. Wieland et al. in 1925,2) and the structure determination was performed in 1940.3) It has been reported that xanthopterin also appears in mammalian urine as a metabolite of tetrahydrobiopterin derived from guanosine triphosphate.4,5)


 Surprisingly, the oriental hornet (Vespa orientalis) makes the most of the natural dye xanthopterin. In M. Plotkin's report, they may harvest solar energy in the yellow-colored cuticle containing xanthopterin with solar insolation.6)


X0007 L0086 F0043 A0410 M1664

References

1)R. L. Blakley, North-Holland Publishing Co., Amsterdam, 1969.
2)H. Wieland, C. Schöpf, Ber. dtsch. Chem. Ges. 1925, 58, 2178.
3)H. Wieland, R. Purrmann, Justus Liebigs Ann. Chem. 1940, 544, 163.
4)B. Stea, R. A. Smith, Surv. Immunol. Res. 1982, 1, 357.
5)T. Fukushima, J. C. Nixon, Anal. Biochem. 1980, 102, 176.
6)M. Plotkin, I. Hod, A. Zaban, S. A. Boden, D. M. Bagnall, D. Galushko, D. J. Bergman, Naturwissenschaften 2010, 97, 1067.

Check for Price and Availability

New Products

Chromatography -Analysis of Adenosine phophates (AMP, cAMP, ADP, ATP) by TCI Dual series

TCIDUal
TCI Dual series can analyze hydrophilic compounds without any ion-pair reagents which is required for ODS columns, because TCI Dual series consist of ODS ligands and Ion-exchange ligands.
This application is also suitable for LC/MS by using volatile buffers.

TCI Catalogs & Product Brochures

websitetip
TCI has a wide variety of specific catalogs and product brochures. Most of them are available in PDF format and can be downloaded from our website.
Please click the following links to pick up the catalogs and brochures you are interested in:

TCI Website Tips

Reagent Guide Online –Product Information Page in TCI Website

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

Additionally, there are many online version specific features;
-New products that aren’t included in Reagent Guide are added every day.
-Product categories that aren’t included in Reagent Guides are available, and new categories are uploaded on a timely basis.

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

Other Information

TCI Facebook Page

logo Various chemistry related information, news, and fun content are posted for you.  Visit us and like us on Facebook!

https://www.facebook.com/TCIchemicals

How to Order TCI Products

For order, please contact our local distributors as follow.

Countries/ Regions:

Singapore

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Australia

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Other Asia Pacific / Regions



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Please visit each country/region's website from the following links and confirm the prices.


http://www.tcichemicals.com

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