6/13/2016  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.

[Pamphlet] Silane Coupling Agents

Silane coupling agents that have been used in research on surface modification, organic-inorganic hybrid materials, and self-assembled monolayers are listed. For ease of use, they are classified by chemical structure.
F2030E
Typical Structures:
・Olefinyl Silanes
・Acryloyloxyalkyl Silanes
・Glycidyloxyalkyl Silanes
・Aminoalkyl Silanes

[New Edition] TCIMail Quarterly Magazine – No. 169

TCIMAIL contains technical papers contributed by leading professors and scientists. We also 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 way, using various schemes and charts.

[Related Leaflet] New Stable Fluorinating Reagent with Ease of Handling (Hara Reagent)


Hara Reagent
This product is easily handled crystalline compound consisting of IF5, pyridine and HF, and is expected as the alternative reagent of IF5 that is unstable in air.

- Air-stable and non-hygroscopic crystalline powder
- Widely applicable to various fluorinations of sulfides and thioacetals, etc.

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

Synthetic Organic Chemistry

Research Article

Tri(cyclohexa-2,5-dien-1-yl)silane: A Stable and Easy-to-handle Surrogate of Monosilane (SiH4)

Oestreich et al. have reported that tri(cyclohexa-2,5-dien-1-yl)silane (1) acts as a surrogate of monosilane (SiH4). According to their results, in the presence of catalytic amounts of B(C6F5)3, an allylic hydride of cyclohexa-2,5-dienyl groups of 1 is transferred to form an Si-H bond-substituted silane (2) with the release of a molecule of benzene. Sequential B(C6F5)3-catalyzed further replacement of two remaining cyclohexa-2,5-dienyl moieties by Si-H bonds proceeds smoothly and an all Si-H bond-substituted monosilane is formed. The given monosilane is directly applied to the transfer hydrosilylation of alkenes. Generally, the handling of monosilane is quite difficult because it is a pyrophoric and toxic gas. On the other hand, 1 is a safe and easy-to-handle monosilane surrogate which easily generates monosilane in situ. Therefore, 1 is expected to be used in organic synthesis in the future.
T3443,T2313

References

Product Highlight

A Triazine Derivative Usable for the Glycosylation Reaction of Unprotected Sugars

2,4-Bis(benzyloxy)-6-chloro-1,3,5-triazine (1) is one of the triazine derivatives and is efficiently used for the synthesis of unprotected glycosyl donors.1) The first report of the glycosylation of unprotected sugars was achieved by Fischer in 19th century,2) but this synthetic method is limited to the use of acid-stable glycosyl donors because of the requirement for acidic conditions. On the other hand, the glycosylation of unprotected sugars using 1 can be complementarily used because the reaction proceeds under basic conditions. For instance, the reaction of 1 with unprotected sugars successfully proceeds in the presence of a base to give the 4,6-dibenzyloxy-1,3,5-triazin-2-yl (DBT) group substituted β-glycosides (2). Subsequent catalytic hydrogenation of benzyloxy groups of DBT in an excess amount of alcohol affords the corresponding alkoxy group substituted glycosides with the elimination of cyanuric acid. This glycosylation using 1 can be applied not only to monosaccharides but also unprotected polysaccharides, so that it is expected to be used in the future.
B4587

References

New Products

Bioscience

New Products

HPLC Columns “TCI Chiral series”

TCI Chiral series

TCI Catalogs & Product Brochures

websitetip
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.
Please click the following links to download catalogs and brochures you are interested in.

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

12th PSK Medicinal Chemistry Workshop

Beache Palace
Muchangpo, Korea
June 23-24, 2016
» TCI exhibition information      » Event details

11th ISMSC-2016 (The International Symposium on Macrocyclic and Supramolecular Chemistry)

The K-Hotel Seoul
Seoul, Korea
July 10-14, 2016
» TCI exhibition information      » Event details

The 118th General Meeting of the Korean Chemical Society

BEXCO
Busan, Korea
October 12-14, 2016
» TCI exhibition information      » Event details

Other Information

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