TCI Materials Science News
Maximum quantity allowed is 999
Please select the quantity
November 2022
TCI is at the forefront of offering high-quality materials for R&D. This issue covers our materials science topics as follows:
- Cyclopentadienone-type Building Blocks for Multi-substituted Acenes
- Strong Electron-Accepting Building Blocks for Organic NLO Materials
- Polycyclic Aromatics with sp3-Carbon Methylene Bridges
- Building Block for the Formation of Polycyclic Aromatic Compounds
Cyclopentadienone-type Building Blocks for Multi-substituted Acenes
7,9-Diphenyl-8H-cyclopenta[a]acenaphthylen-8-one [D6039], tetraphenylcyclopentadienone [T1062], 2,5-bis(4-bromophenyl)-3,4-diphenylcyclopenta-2,4-dienone [B5987] and 2,5-bis(methoxycarbonyl)-3,4-diphenylcyclopentadienone [B1962] are highly reactive with various dienophiles. These clyclopentadienones can be converted to multi-substituted acenes by Diels-Alder cycloaddition with arynes or alkynes and subsequent decarbonylative aromatization. Obtained acenes are expected to be used in organic electronics research.
Strong Electron-Accepting Building Blocks for Organic NLO Materials
Two tricyanofurans [C3791] [C3792] enable the synthesis of organic nonlinear optical (NLO) materials with excellent electron-accepting units through condensation reactions of reactive methyl groups and various aldehyde derivatives under mild conditions. Due to their strong electron acceptor properties, the obtained organic NLO materials have improved molecular hyperpolarizability and exhibit significant electro-optical (EO) effects.
Polycyclic Aromatics with sp3-Carbon Methylene Bridges
TCI offers several compounds with sp3-carbon methylene moieties, including, fluorene [F0017], 2,3-benzofluorene [B0059], 1,2-benzofluorene [B3931], 4H-cyclopenta[2,1-b:3,4-b']dithiophene [C3021], 5,10-dihydroindeno[2,1-a]indene [D3191], truxene [T2752], sumanene [S0888] and methylene-bridged [6]cycloparaphenylene [M3419]. These compounds allow methylene moieties to be easily substituted. Arylation, alkylation and other derivatizations can be used to modify physical properties like solubility.
Building Block for the Formation of Polycyclic Aromatic Compounds
Biphenylene [B6284] is a hydrocarbon with a strained four-membered ring moiety. The carbon-carbon bond linking two benzene rings of biphenylene is cleaved by the transition metal and then used in the formation of new carbon-carbon bonds with different chemical species. For instance, the annulative cross-coupling with biphenylene and 1,5,9-trichlorotriphenylene allows the synthesis of 8-membered-ring polyaromatic compounds. The palladium-catalyzed cross-coupling reaction of 2-alkylphenyl bromides with biphenylene through C(sp3)-H activation has also been reported. » TCI eNewsletter Back Issues
How to Order TCI ProductsTo order, please contact your local distributor found below.» Our distributors |
| * 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. https://www.TCIchemicals.com |
|
If you are interested in our biweekly e-enewsletter "TCI News" and want to receive regularly, please click the link below and sign up. TCI News Sign-Up |
|
Tokyo Chemical Industry Co., Ltd. (TCI) Global Business Department Customer Support and Technical service » globalbusiness@TCIchemicals.com » https://www.TCIchemicals.com |