38069-03-3

Upstream product

• 542-92-7 cyclopenta-1,3-diene 
• 100-06-1 1-(4-methoxyphenyl)ethanone 
• 123-75-1 pyrrolidine 
• 75-16-1 methylmagnesium bromide 

Downstream Products

• 544696-83-5 1-cyclopentadienyltricarbonylrhenium-1-(4'-methoxyphenyl)ethane 
• 544696-80-2 1-cyclopentadienyltricarbonylrhenium-1-(4'-methoxyphenyl)ethene 

Relevant academic research and scientific papers

Inhibition of human topoisomerase I and II and anti-proliferative effects on MCF-7 cells by new titanocene complexes

The antitumor activity shown by many platinum complexes has produced a strong interest in research of new organometallic compounds having anticancer action. Among the many metal compounds synthesized and tested, those based on titanium have received consi

Kinetics and Mechanism of Pyrrolidine Buffer-Catalyzed Fulvene Formation

Rapid synthesis of fulvenes is achieved using pyrrolidinium/pyrrolidine buffers in anhydrous acetonitrile. Time-dependent UV-vis absorption and NMR spectroscopy reveal that the rate and yield of fulvene formation depend strongly on both the presence of acid in the medium and the choice of solvent, and they are negatively affected by water. Kinetic data have been collected for various substrates, and the synthetic benefits of the adjusted reaction conditions are showcased. Enhancements of reaction rates are found in comparison to literature procedures. α-Unsaturated fulvenes that were previously difficult to access can now be obtained in good yields.

BRIDGED METALLOCENES FOR USE IN CATALYST SYSTEMS FOR THE POLYMERISATION OF OLEFINS

Bridged metallocenes of Group IVb metals provide improved results when the bridge comprises a neutral electron-donor substituent of general formulawhereinR''' is a rigid unsaturated hydrocarbon radical between Z and the bridge, such that Z is separated fr

Bridged metallocenes for use in catalyst systems

Bridged metallocenes of Group IVb metals provide improved results when the bridge comprises a neutral electron-donor substituent of general formula wherein R'" is a rigid unsaturated hydrocarbon radical between Z and the bridge, such that Z is separated f

Conformational Effects on High-Spin Organic Molecules

The ability of m-phenylene to ferromagnetically couple spin-containing substituents that are substantially twisted out of conjugation is investigated.The "bis(TMM)" strategy is employed, in which two triplet TMM biradicals are linked through m-phenylene to produce relatively stable, organic tetraradicals that are characterized by EPR spectroscopy.Under conditions of moderate twisting (4), ferromagnetic coupling is seen, and the tetraradical has a quintet ground state.Severely twisting both TMM as in 13 disrupts spin communication, and two noninteracting triplets are produced.This is in contrast to other highly twisted m-phenylene derivatives, in which antiferromagnetic coupling has been observed.Surprisingly, severely twisting only one TMM (14) still produces ferromagnetic coupling and a quintet ground state through a spin polarization mechanism analogous to that proposed for 90 deg C twisted ethylene.Several ring-constrained TMMs (17-19) are investigated as models for more nearly planar systems.