03/03/2014  TCI NEWS

Dear Valued Customers,

We really appreciate your great support for TCI - your reagent partner.

We proudly announce that we will start sending our TCI eNewsletter "TCI NEWS" to our valued customers located in Asia Pacific from today March 3, 2014.  This eNewsletter will be sent to you every four weeks, and will be a useful and essential source of information to support your research.

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We truly appreciate your continued support for TCI.

Sincerely yours,

New 2014-2015 Fine Chemicals Catalog will be available in April

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The new catalog includes over 23,000 research chemicals, with 1,500 new products for synthetic organic chemistry, materials chemistry, bioscience and analytical science.  Also the catalog contains chemical structure formulas, extensive physical and chemical data, and hazard information, etc.

TCIMAIL No.160 - Paper Magazine

In the TCIMAIL, we mainly introduce our new reagents in the fields of Synthetic Organic Chemistry, Materials Chemistry, Bioscience and Analytical Science.  Examples of application and use are explained in an easy to understand way, using various schemes and charts.  The TCIMAIL also contains technical papers contributed by leading professors and scientists.

TCIMAIL No.160 January 2014

TCI Mail No.160
Research Articles
Innovative Molecular Design of Chiral 1,1′-Binaphthyl 2,2′-Disulfonic Acid (BINSA)
Manabu Hatano, Associate Professor,
Keisuke Nishikawa, Postdoctoral fellow,
Kazuaki Ishihara, Professor,
Graduate School of Engineering, Nagoya University

Chemistry Chat
Focusing on the Elements - Colors and Chemical Names (1)
Kentaro Sato
Visit to a School Science Lab - Visit to a Science Club: Chemistry Club at Shibuya Kyoiku Gakuen Makuhari Junior and Senior High School

Applications
- Short Topic: More ways to use | Organic Syntheses Utilizing the Chemical Properties of Chlorosulfonyl Isocyanate
- Pincer Type Rh Complex Catalyzed Asymmetric Diboration of Terminal Alkenes and Their Conversion to the Optically Active 1,2-Diols
- GABA Receptor Antagonist
- Bone Resorption Inhibitor

Synthetic Organic Chemistry

Research Article

Flow Generation and Reaction of Diazomethane Using a Gas-Permeable Teflon Tube-in-Tube Reactor

Kappe et al. have reported a continuous generation, separation, and reactions of anhydrous diazomethane in a tube-in-tube continuous flow reactor.  Diazomethane is formed in the inner tube by the treatment of N-methyl-N-nitroso-p-toluenesulfonamide with KOH, and then diffuses through the gas-permeable inner tube into the outer chamber and subsequently reacts with reactants dissolved in the solution carried within.  This synthetic device is applied to methyl esterifications, cyclopropanations, [2+3] cycloadditions and Arndt-Eistert reactions. The tube-in-tube, made of gas-permeable Teflon AF-2400 (inner) and impermeable PTFE (outer), is commercially available.
T0323

References

F. Mastronardi, B. Gutmann, C. O. Kappe, Org. Lett. 2013, 15, 5590.

Product Highlight

An Efficient N-Heterocyclic Carbene Precursor for the Asymmetric Intramolecular Stetter Reaction

T. Rovis et al. has developed a chiral bicyclic triazolium salt (1) and has used it as a N-heterocyclic carbene precursor. 1 affords the related N-heterocyclic carbene 2 by a deprotonation under basic conditions.  The chemical property of 2 is in showing a lower basicity effected by the electron-deficient 4-(trifluoromethyl)phenyl group of 2. Therefore, in an intramolecular Stetter reaction using 2 as an organocatalyst, the reactions proceed with high enantio- and diastereoselectivities even when substances easy to epimerize are employed.  In addition, in a case using substances which easily proceed to intramolecular aldol condensations, the intramolecular Stetter reactions preferentially proceed. Furthermore, aliphatic aldehydes can be used and afford the desired 1,4-dicarbonyl compounds with high stereoselectivities.  Thus, 1 is an efficient asymmetric organocatalyst because of its availability for various substances.
B3592

References

J. Read de Alaniz, T. Rovis, J. Am. Chem. Soc. 2005, 127, 6284.
J. Read de Alaniz, M. S. Kerr, J. L. Moore, T. Rovis, J. Org. Chem. 2008, 73, 2033.
M. S. Kerr, J. Read de Alaniz, T. Rovis, J. Org. Chem. 2005, 70, 5725.

New Products

Bioscience

New Products

TCI Website Tips

Did you know that all TCI catalog information is included on the TCI website?

TCI has several printed catalogs for specific categories such as Synthetic Organic Chemistry, Glycoscience, Chromatography Columns, etc.
Our website has all the content of these catalogs in HTML form.  Please click on "Products" in the global menu and select any categories from the drop-down menu.
You can also check the prices and availability of any products easily.

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If you want to receive the printed Catalogs, please visit our website and make a request.

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Regional Campaigns, Events & Exhibitions

Singapore
New Campaign from March 1, 2014: Buy 3 TCI Reagents, Get a FREE Foldable Water Bottle!

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Australia
AUD prices -Available from November 25, 2013

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Other Information

TCI Facebook Page

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

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How to Order TCI Products

HOW TO ORDER
For order, please contact our local distributors as follow.

Countries/ Regions:

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Taiwan

Australia

South Korea

Hong Kong

Other Asia Pacific / Regions


* The prices displayed in the landing website are USD based catalog prices.  TCI has specific website and local currency based price list for customers in South Korea, Singapore, and Australia.  For customers in other Asia Pacific countries / regions, please visit our Asia Pacific Website and contact our local distributors for the end user's cost. (The USD prices that are shown in Asia Pacific websites are TCI's catalog prices.)
Please visit each country/region's website from the following links and confirm the prices.


http://www.tcichemicals.com

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