Raman and IR spectroscopic studies of the interaction between counterion and polar group in self-assembled systems of AOT-homologous “sodium dialkyl sulfosuccinates’'
dicarboxylic acid esters was studied. Single-chain amphiphiles were markedly more effective than the double-chain ones. Monododecyl maleate, that is a cis derivative, was a more potent enhancer than its trans isomer, while the activity of succinates strongly depended on the donor vehicle. No difference between diastereoisomeric tartaric and meso-tartaric acid derivatives was found.
How Does Aqueous Solubility of Organic Reactant Affect a Water-Promoted Reaction?
作者:Yi-Jie Zuo、Jin Qu
DOI:10.1021/jo500733v
日期:2014.8.1
condition, various water-promoted organic reactions can proceed with very high speed. Thus, it is considered that the aqueous solubility of reactant is not an important issue in these reactions. Three types of water-promoted organic reactions were investigated in the current study to distinguish whether the reaction rate of an aqueousreaction was affected by the aqueous solubilities of the reactants. The
Template-Assisted Benzannulation Route to Pentacene and Tetracene Derivatives and its Application to Construct Amphiphilic Acenes That Self-Assemble into Helical Wires
作者:Bikash Pal、Chun-Hsiung Chang、Cian-Jhe Zeng、Chih-Hsiu Lin
DOI:10.1002/chem.201703084
日期:2017.12.11
on template-assisted multiple benzannulation emerges. This efficient and versatile approach enables the synthesis of terminal-ring-substituted pentacene and tetracene derivatives with considerable structure diversity. With this protocol, the authors also revealed an amphiphilic pentacenederivative that self-assembles to form helical nanowires.
Face-to-Face Packing of 2,3,9,10-Tetrasubstituted Pentacene Derivatives Revealed through a Solid State [4 + 4] Thermal Cycloaddition and Molecular Dynamic Simulation
作者:Bikash Pal、Bo-Chao Lin、Mark Vincent Carreon dela Cerna、Chao-Ping Hsu、Chih-Hsiu Lin
DOI:10.1021/acs.joc.6b00526
日期:2016.8.5
pentacene diester-dinitriles were synthesized. These pentacene derivatives underwent an unusual solidstate [4 + 4] thermal dimerization with good efficiency and complete stereoselectivity. This observation indicates this series of pentacene derivatives adopt π–π stacking geometry with large mutual overlap in solidstate. This notion was confirmed by molecualr dynamic simulation.
Process for the preparation of fumaric acid monoesters
申请人:Bayer Aktiengesellschaft
公开号:US04515974A1
公开(公告)日:1985-05-07
Fumaric acid monoesters can be prepared by introducing a hydroxyl compound at a rate corresponding to the progress of the reaction into a solution or a melt of maleic anhydride, which may optionally be substituted, if appropriate in the presence of a cis-trans catalyst. New fumaric acid monoesters can be formed by the process.