对位-苄胺取代oligophenol通过4-(苄基氨基)苯酚(BAP)的酶促氧化缩聚合成。聚合仅涉及酚部分而不氧化仲胺(苄胺)基团。使用HRP酶对BAP单体进行化学选择性缩聚,可得到在侧链具有仲胺官能团的低聚酚。研究了溶剂体系,反应pH和温度等因素对缩聚反应的影响。具有最高的产率(63%)和分子量(最佳聚合方法中号Ñ 24在25℃:= 5000,聚合25的≈度),使用EtOH中取得/缓冲液(1体积比1个pH 5.0。) h在空气中。低聚物的表征通过1 H NMR和13 C NMR,傅立叶变换红外光谱(FT-IR),凝胶渗透色谱(GPC),紫外可见光谱(UV-Vis),循环伏安法(CV)和热重分析(TGA)。聚合过程涉及从BAP中消除氢和低聚物(BAP)的酚-OH端基,已通过1 H NMR和FT-IR分析确认。低聚物骨架具有亚苯基和oxyphenylene重复单元,并且将所得的低聚物是在普通
The reaction of imines with alkynes and alkenes, in the presence of 2,3-dichloro-5,6-dicyano-p-benzoquinone (DDQ), to give quinoline derivatives is described. The mechanism of the annulation is discussed, and evidence supporting a non-concerted pathway, at least when the alkene is butyl vinyl ether, is reported. Preliminary information is also given about solid adducts of imines with DDQ, which do
GREEN SYNTHESIS OF ARYL ALDIMINES USING ETHYL LACTATE
申请人:Bennett Jacqueline S.
公开号:US20110196174A1
公开(公告)日:2011-08-11
The present invention relates to a method for preparing aryl aldimines. In particular, the present invention relates to methods of preparing aryl aldimines that uses environmentally friendly solvent systems.
[EN] PROCESS FOR MAKING TETRACYCLIC HETEROCYCLE COMPOUNDS<br/>[FR] PROCÉDÉ DE PRÉPARATION DE COMPOSÉS HÉTÉROCYCLIQUES TÉTRACYCLIQUES
申请人:MERCK SHARP & DOHME
公开号:WO2016004899A1
公开(公告)日:2016-01-14
The present invention is directed to a process for making Tetracyclic Heterocycle Compounds of Formula (I) and pharmaceutically acceptable salts thereof, wherein X1, X2, R1, R2 and R3 are defined above herein. The present invention is also directed to compounds that are useful as synthetic intermediates in the process of the invention.
The evaluation of the role of C–H⋯F hydrogen bonds in crystal altering the packing modes in the presence of strong hydrogen bond
作者:Gurpreet Kaur、Sandhya Singh、Amritha Sreekumar、Angshuman Roy Choudhury
DOI:10.1016/j.molstruc.2015.10.105
日期:2016.2
found to form strong O–H⋯N hydrogen bond, but the spatial arrangement of the molecules connected by this hydrogen bond have been found to be controlled by the weak C–H⋯F and C–H⋯O hydrogenbonds, weak C–H⋯π and π⋯π interactions. This manuscript illustrates the importance of several weaker interactions in altering the packing modes in the presence of strong hydrogenbonds.
INDENOISOQUINOLINONE DERIVATIVES, MANUFACTURING METHOD AND MEDICAL USE THEREOF
申请人:Xiang Hua
公开号:US20130085140A1
公开(公告)日:2013-04-04
Indenoisoquinolinone derivatives (I), the manufacturing method and the medical use thereof, which belong to pharmaceutical chemistry and organic chemistry field, are disclosed. These compounds can be used for treating several medical symptoms related to postmenopausal syndrome, uterine fibers deterioration and aortic smooth muscle cells proliferation, especially ER-(+) depend breast cancer. Meanwhile, these compounds can also be used for treating glioma and lung cancer, and have inhibiting effect on tumor metastasis effect on tumor metastasis.