在目前的工作中,包括 Zn (II) 和N-十六烷基咪唑配体的同核配位络合物首次用作合成 3,4-二氢-2 H -1,3-苯并恶嗪单体的高效均相中性有机催化剂. 因此,通过曼尼希型缩合反应成功合成了N-烷基或N-芳基取代的单苯并恶嗪和双苯并恶嗪(21 个实例)。毫不费力地以高收率和短反应时间获得纯产物,使该方法比现有的常见苯并恶嗪合成方法更有用和更有利。
Screening of simple carbohydrates as a renewable organocatalyst for the efficient construction of 1,3-benzoxazine scaffold
作者:Ayhan Yıldırım、Yunus Kaya、Mustafa Göker
DOI:10.1016/j.carres.2021.108458
日期:2021.12
performed to study the detailed mechanism of organocatalyst assisted synthesis of the benzoxazinemonomers. The results obtained from these calculations showed that the more realistic reaction pathway involves formation of a phenolate based intermediate which loses a water molecule to form benzenaminium ion. Subsequently, this ion provides the formation of the corresponding benzoxazines with good yields
4H) pyrimidinediyl)bis(methylene)]phenol was detected as a promising lead compound for inhibition of the MPO-typical two-electron oxidation of chloride to hypochlorous acid (IC50 = 0.5 μM). In the present pharmacomodulation study, 37 derivatives of this lead compound were designed and synthesized driven by comprehensive docking studies and the impact on the chlorination activity of MPO. We describe the
Shepard; Ticknor, Journal of the American Chemical Society, 1916, vol. 38, p. 384
作者:Shepard、Ticknor
DOI:——
日期:——
SELEKTIVE POLYURETHANPREPOLYMERSYNTHESE
申请人:PolyU GmbH
公开号:EP4013802A1
公开(公告)日:2022-06-22
[EN] SELECTIVE POLYURETHANE PREPOLYMER SYNTHESIS<br/>[FR] SYNTHÈSE SÉLECTIVE DE PRÉPOLYMÈRES DE POLYURÉTHANE<br/>[DE] SELEKTIVE POLYURETHANPREPOLYMERSYNTHESE
申请人:POLYU GMBH
公开号:WO2021028511A1
公开(公告)日:2021-02-18
Die vorliegende Erfindung betrifft ein selektives Verfahren zur Herstellung von Polyurethanprepolymeren, die daraus erhältlichen Polyurethanprepolymere sowie ein Verfahren zur Herstellung feuchtigkeitsvernetzender siylierter Polymere, insbesondere von Silan-funktionellen Hybridpolymere sowie deren Verwendung in CASE-Bereichen (Beschichtungen, Klebstoffe, Dichtungen und Elastomere).