3386-87-6Relevant articles and documents
Alkyl diol (double third nitrile base ) preparation method of the ether
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Paragraph 0058; 0060, (2017/03/08)
The invention provides a method for preparing alkyl diol (di-propionitrile) ether. The method comprises the steps of (1) carrying out condensation reaction on the alkyl diol and acrylamide so as to generate alkyl diol (di-propionamido) ether, wherein the solvent used in the condensation reaction is ketone, the temperature of the condensation reaction is 10-100DEG C, and the catalyst used in the condensation reaction is alkali metal hydroxide; and (2) dehydrating the alkyl diol (di-propionamido) ether under the action of a dehydrating agent in the presence of a solvent, so as to obtain the alkyl diol (di-propionitrile) ether, wherein the solvent is one of hydrochloric ether, nitrile and ether, the dehydrating agent is sulfoxide chloride, and the temperature of dehydration is 30-150 DEG C.
METHOD FOR PREPARING DINITRILE COMPOUND
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Paragraph 0058-0060, (2014/02/16)
Disclosed is a method for preparing a dinitrile compound. The method includes reacting an alcohol compound with a nitrile compound having a terminal carbon-carbon unsaturated bond under anhydrous conditions. A potassium alkoxide having 1 to 5 carbon atoms is used as a catalyst in the course of the reaction. According to the method, a high-purity dinitrile compound can be prepared in a simple manner within a short reaction time indicating high productivity.
Synthesis and intrinsic blue fluorescence study of hyperbranched poly(ester-amide-ether)
Zhang, Yong,Fu, Qi,Shi, Wenfang
experimental part, p. 2452 - 2460 (2011/10/02)
A series of hyperbranched poly(ester-amide-ether)s (H-PEAEs) were synthesized via the A2+CB3 approach by the self-transesterification of ethyl ester-amide-ethers end-capped with three hydroxyl groups and ethyl ester group at two terminals. The molecular structures were characterized with 1H NMR and FT-IR spectroscopy. The number average molecular weights were estimated by GPC analysis to possess bimodal wide distribution from 1.57 to 2.09. The strong inherent blue fluorescence was observed at 330 nm for excitation and 390 nm for emission. Moreover, the emission intensity and fluorescence quantum yield increased along with the incorporated ether chain length, as well as almost linearly with the H-PEAE concentration in an aqueous solution. For comparing the fluorescence performance, the linear poly(ester-amide-ether) (L-PEAE) and hyperbranched poly(ester-amide) (H-PEA) were synthesized. The results showed that the coexistence of ether bond and carboxyl group in the molecular chain was essential for generating the strong fluorescence. However, the compact backbone of H-PEAE would be propitious to the enhancement of fluorescence properties.