3/22/2016  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.

[NEW] Pamphlet - Thiophenes

Q6000E
Thiophene derivatives which have been used for the synthesis of conducting materials are classified according to chemical sutructure in this brochure. This is also suitable for thiophene library.

- Monothiophenes are classified according to bonding pattern
- Benzothiophenes, polycyclic thiophenes and oligothiophenes are categorized

[New Edition] TCIMail Quarterly Magazine – No. 168

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.

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

Synthesis of 1,2-Diamine Derivatives Using a Rhodium Catalyst

Du Bois et al. have reported the 1,2-diamination reactions of alkenes using a rhodium catalyst. According to their results, aziridines 2 are formed from alkenes and a sulfamide 1 by the Rh2(esp)2 catalyst and iodobenzene diacetate-promoted aziridination. By adding sodium iodide, the aziridines 2 are cleaved to form the acyclic intermediate 3 and the consequent ring-closing process affords the 5-membered cyclic sulfamides 4. The given sulfamides 4 are hydrolyzed by an aqueous pyridine and converted to the mono Boc-protected 1,2-diamines. In this synthetic process, the tandem ring-opening and ring-closing reactions proceed involving two SN2 type substitutions. Therefore, when E alkenes are used as starting materials, trans-1,2-diamines are given, and in the case of Z alkenes, cis-1,2-diamine derivatives are given, respectively.
B4549,I0330

References

Product Highlight

Acetamidoxime: A Useful Reagent for Constructing Heterocyclic Compounds

Acetamidoxime (1) is a useful reagent for constructing heterocyclic compounds by the condensation-cyclization reactions with carbonyl compounds such as carboxylic acids and acid chlorides. For example, an ester 2 is formed by the condensation reaction of the hydroxy group of 1 with the carboxylic acid, followed by the intramolecular cycloaddition of the amino group of 2 to the carbonyl group to give the heterocycle 3. The formed 1,2,4-oxadiazole derivative acts as a bioisostere of the ester and amide groups. Therefore, 1 is expected to be used for the formation of heterocyclic compounds aimed for drug discovery.
A2646,D0436,H0672

References

New Products

Bioscience

New Products

Mixed-Mode columns (ODS + Ion-Exchange) for HPLC “TCI Dual series”

• Analysis of Alkali Halides by TCI Dual series
TCI Dual 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

The Polymer Society of Korea – 2016 Spring Meeting

Daejeon Convention Center
Daejeon, Korea
April 6-8, 2016
» TCI exhibition information      » Event details

117th General Meeting & Exhibition of the Korean Chemical Society

KINTEX
Goyang, Korea
April 20-22, 2016
» TCI exhibition information      » Event details

Other Information

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


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