H3PW12O40–[bmim][FeCl4]: A novel and green catalyst-medium system for microwave-promoted selective interconversion of alkoxymethyl ethers into their corresponding nitriles, bromides and iodides
Résumé In the present work, the catalytic activity of 12-tungstophosphoric acid immobilized on [bmim][FeCl4] ionic liquid as a highly efficient and eco-friendly catalytic system for rapid and chemoselective direct conversion of MOM- or EOM-ethers into their corresponding nitriles, bromides and iodides under microwave irradiation is reported. In these reactions, the products are obtained in high yields. The catalyst exhibited remarkable reactivity and was reused several times.
Résumé A simple, green and chemoselective method for methoxymethylation and ethoxymethylation of primary and secondary alcohols using a Lewis acidic room temperature ionic liquid, [C4mim][InCl4], as catalyst and reaction medium under ambient temperature, microwave and ultrasonic irradiations is reported. In this catalytic system, the corresponding MOM-and EOM-ethers are obtained in excellent yields and in short reaction times. Furthermore, this catalytic system was used for mild and efficient transformations of these protected alcohols to their corresponding acetates and trimethylsilyl ethers under thermal conditions and microwave and ultrasonic irradiations.
COMPOSITION FOR USE IN ORGANIC DEVICE, POLYMER FILM, AND ORGANIC ELECTROLUMINESCENT ELEMENT
申请人:Mitsubishi Chemical Corporation
公开号:EP3173456A1
公开(公告)日:2017-05-31
The present invention relates to a composition for use in an organic device, comprising at least two cross-linking compounds, wherein
each of the at least two cross-linking compounds is a polymer that has a hole-transporting site and constitutional repeating units, the at least two polymers having different average numbers of cross-linking groups per constitutional repeating unit and/or different numbers of cross-linking groups in portions other than the constitutional repeating units, and
wherein the cross-linking compounds are compounds having a partial structure of the following formula [109]:
The present invention further pertains to an organic electroluminescent element that comprises an anode and a cathode on a substrate and at least one organic layer disposed between the anode and the cathode, wherein at least one organic layer is a layer that is produced by forming a film of the composition for use in an organic device above.
H3PW12O40@[bmim][FeCl4]: A green catalytic system for alkoxymethylation of alcohols and their one-pot interconversion to acetates and TMS-ethers
作者:I. Mohammadpoor-Baltork、M. Moghadam、S. Tangestaninejad、V. Mirkhani、A. R. Khosropour、A. Mirjafari
DOI:10.1007/bf03249085
日期:2011.6
12-Tungstophosphoric acid immobilized on [bmim][FeCl4] was found to be an efficient catalyst for chemoselective methoxymethylation and ethxoymethylation of alcohols and also one-pot conversion of MOM- or EOM-ethers to their corresponding acetates and TMS-ethers under thermal conditions and microwave irradiation. These procedures were simple, rapid and the corresponding products were obtained in high yields. The catalyst exhibited remarkable reactivity and was reusable.
Microwave-promoted, one-pot conversion of alkoxymethylated protected alcohols into their corresponding nitriles, bromides, and iodides using [bmim][InCl4] as a green catalyst
The Lewis acid room temperature ionic liquid, [bmim][InCl4], was found to be an efficient and green catalyst for the highly chemoselective and one-pot conversion of MOM- or EOM-ethers into their corresponding nitriles, bromides, and iodides under microwave irradiation. The procedures are simple, rapid, and high yielding. The catalyst exhibited a remarkable reactivity and is reusable. (C) 2010 Elsevier Ltd. All rights reserved.