Glucopyranoside Recognition by Polypyridine-Macrocyclic Receptors Possessing a Wide Cavity with a Flexible Linkage
摘要:
New polypyridine-macrocyclic receptors for glucopyranosides were designed and synthesized. The artificial receptors possess a terpyridine skeleton asa hydrogen-bonding site and a flexible polyoxyethylene chain as a bridge for the macrocyclic structure, in which the cavity of the receptors is large enough to incorporate pyranosides, The receptors showed high affinities for n-octyl beta-(D)-glucopyranoside, and selective binding of the receptors was observed between epimeric pyranosides. The results obtained in this paper demonstrated versatility of the terpyridine skeleton as a hydrogen-bonding site for saccharides.
[EN] METHOD TO PREPARE PHENOLICS FROM BIOMASS<br/>[FR] PROCÉDÉ DE PRÉPARATION DE COMPOSÉS PHÉNOLIQUES À PARTIR DE BIOMASSE
申请人:TNO
公开号:WO2016114668A1
公开(公告)日:2016-07-21
The present invention is directed to a method for preparing a final phenolic product from biomass comprising the steps of providing a furanic compound obtainable from biomass; reacting the furanic compound with a dienophile to obtain a phenolic compound; reacting the phenolic compound further to obtain the final phenolic product.
Method for production of halogen-containing phthalocyanine compound
申请人:Hirota Kouichi
公开号:US20050203293A1
公开(公告)日:2005-09-15
This invention relates to a method for for the production of a halogen-containing phthalocyaline compound by the cyclization of phthalonitrile compounds either singly or in combination with a metal compound, characterized in effecting the cyclization in an organic compound having a hydroxyl group and/or a carboxylic acid in an amount in the range of 0.01-10 mass parts per one mass part of the phthalonitrile compounds while continuing the introduction of an inert gas. This method, by using a solvent capable of serving as a specific oxygen source destined to participate in the reaction of complexing a metal compound introduced into a phthalocyanine dye, permits the production of a phthalocyanine compound inexpensively in a high yield.
The ubiquitousness of esters and amide functionalities makes their coupling reaction one of the most sought-after organic transformations. Herein, we have described an efficient microwave-assisted synthesis of esters and amides. Soluble triphenylphosphine, in conjugation with molecular iodine, gave the desired products without the requirement for a base/catalyst. In addition, a solid-phase synthetic
This disclosure is related to photo-stable chromophores which are useful in various applications. Chromophores disclosed herein include a bis-triazole core, two electron-donors at C-4 and C-8, and two groups derived from pentaerythritol (R═OR
5
) or 1,1,1-tris(hydroxymethyl)methane (R═H) at N-2 and N-6. Such structures have been proven to have greater then five times higher photo-stability than their analogs with simpler alkyl groups at N-2 and N-6.
Synthesis and Insecticidal Evaluation of Novel <i>N</i>-Oxalyl Derivatives of Tebufenozide
作者:Chun Hui Mao、Qing Min Wang、Run Qiu Huang、Fu Chun Bi、Li Chen、Yu Xiu Liu、Jian Shang
DOI:10.1021/jf048834e
日期:2004.11.1
A series of novel N '-tert-butyl-N '-3,5-dimethylbenzoyl-N-aryloxyoxalyl-N-4-ethylbenzoyl hydrazines containing a carboxylic acid or ester substituent on the aryl were synthesized, and their larvicidal activities were evaluated. The results of bioassays indicated that some of these title compounds exhibit higher larvicidal activities than RH5849 (N-tert-butyl-N,N '-dibenzoylhydrazine), but they are