base of rhodamine 6G | 3373-01-1

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并吡喃
• 英文名称: base of rhodamine 6G
• 英文别名: rhodamine 6G；ethyl 2-[(6Z)-3-(ethylamino)-6-ethylimino-2,7-dimethylxanthen-9-yl]benzoate
• CAS: 3373-01-1
• 化学式: C₂₈H₃₀N₂O₃
• 分子量: 442.558
• InChiKey: IWWWBRIIGAXLCJ-KRUMMXJUSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.35
• 重原子数：
  33.0
• 可旋转键数：
  6.0
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.29
• 拓扑面积：
  63.83
• 氢给体数：
  1.0
• 氢受体数：
  5.0

反应信息

• 作为反应物：
  描述：

  base of rhodamine 6G 、 乙二胺 以 乙醇 为溶剂， 反应 4.0h， 以90.3%的产率得到N-(rhodamine-6G)lactam-ethylenediamine
  参考文献：
  名称：

  Rhodamine-derived Schiff base for the selective determination of mercuric ions in water media

  摘要：

  A new rhodamine-derived Schiff base (RS) was synthesized and its sensing property to metal ions was investigated by UV/vis and fluorescence spectroscopies. Addition of Hg2+ ions to the aqueous solution of RS gave a visual color change as well as significantly fluorescent enhancement, while other ions including Pb2+, Cd2+, Cr3+, Zn2+, Cu2+, Fe2+, Co3+, Ni2+, Ca2+, Mg2+, K+ and Na+ ions did not induce any distinct color/spectral changes, which constituted a Hg2+-selective fluorescent OFF-ON chemosensor. The Hg(2+)induced ring-opening of spirolactam of rhodamine in RS resulted in the dual chromo- and fluorogenic observation. (C) 2010 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.saa.2010.12.010

文献信息

• FLUORESCENT PROBE COMPOUNDS, PREPARATION METHOD AND USE THEREOF
  申请人：Peng Xiaojun

  公开号：US20130137879A1

  公开（公告）日：2013-05-30

  A fluorescence probe compound, its preparation method and use are provided. The said compound is represented by the general formula I, wherein, each of R 1 , R 2 , R 3 and R 4 is individually selected from the group consisting of H, C 1-18 alkyl, phenyl substituted by C 1-18 alkyl, naphthyl substituted by C 1-18 alkyl, halogen, OR 9 , N(R 9 ) 2 , cyano group, (CH 2 CH 2 O)nH, (CH 2 )mCOOH and (CH 2 )mSO 3 M; each of R 5 , R 6 , R 7 and R 8 is individually selected from the group consisting of H, C 1-18 alkyl, phenyl substituted by C 1-18 alkyl, naphthyl substituted by C 1-18 alkyl, halogen, hydroxyl, mercapto group, cyano group, nitro group, heterocyclic group, halogenated alkyl, alkyl amino group, acylamino group, OR 9 , N(R 9 ) 2 , (CH 2 CH 2 O)nH, (CH 2 )mCOOH and (CH 2 )mSO 3 M; R 9 represents H, C 1-18 alkyl, phenyl substituted by C 1-18 alkyl, naphthyl substituted by C 1-18 alkyl, halogen, cyano group, (CH 2 CH 2 O)nH, (CH 2 )mCOOH or (CH 2 )mSO 3 M; n and m each individually represent integer of 0 to 8; M represents H, K, Na, Li, NH 4 , NH 3 R 10 , NH 2 (R 10 ) 2 , NH(R 10 ) 3 or N(R 10 ) 4 ; and R 10 represents H, C 1-6 alkyl or CH 2 CH 2 OH. The compound is useful for detecting mercury ion.

  提供了一种荧光探针化合物及其制备方法和用途。所述化合物由通式I表示，其中，R1、R2、R3和R4中的每一个分别选自H、C1-18烷基、被C1-18烷基取代的苯基、被C1-18烷基取代的萘基、卤素、OR9、N(R9)2、氰基、(CH2CH2O)nH、(CH2)mCOOH和(CH2)mSO3M组成的群体；R5、R6、R7和R8中的每一个分别选自H、C1-18烷基、被C1-18烷基取代的苯基、被C1-18烷基取代的萘基、卤素、羟基、巯基、氰基、硝基、杂环基、卤代烷基、烷基氨基基、酰胺基、OR9、N(R9)2、(CH2CH2O)nH、(CH2)mCOOH和(CH2)mSO3M组成的群体；R9表示H、C1-18烷基、被C1-18烷基取代的苯基、被C1-18烷基取代的萘基、卤素、氰基、(CH2CH2O)nH、(CH2)mCOOH或(CH2)mSO3M；n和m分别表示0到8的整数；M表示H、K、Na、Li、NH4、NH3R10、NH2(R10)2、NH(R10)3或N(R10)4；R10表示H、C1-6烷基或CH2CH2OH。该化合物可用于检测汞离子。
• Optical Element for Correcting Color Blindness
  申请人：Harding Brett T.

  公开号：US20130032758A1

  公开（公告）日：2013-02-07

  Described herein are devices, compositions, and methods for improving color discernment.

  本文描述了用于改善色彩辨识的设备、组合物和方法。
• WATER-SOLUBLE IRON ION FLUORESCENT PROBE AND PREPARATION METHOD THEREOF
  申请人：CHANGZHOU VOCATIONAL INSTITUTE OF ENGINEERING

  公开号：US20190112483A1

  公开（公告）日：2019-04-18

  The present invention relates to a water-soluble ferric ion fluorescent probe, and the fluorescent probe molecule has a structure as shown in the following figure. The present invention also discloses a preparation method of the water-soluble ferric ion fluorescent probe.

  本发明涉及一种水溶性铁离子荧光探针，该荧光探针分子具有以下图示结构。本发明还公开了一种水溶性铁离子荧光探针的制备方法。
• XANTHENE DYES
  申请人：Reddington Mark

  公开号：US20080214811A1

  公开（公告）日：2008-09-04

  The invention provides a novel class of xanthene dyes, some of which are functionalized to allow their coupling to conjugation partners of interest, e.g. biomolecules, drugs, toxins and the like. Also provided are conjugates of the dyes, methods of preparing and using the dyes and their conjugates and kits including the dyes and their conjugates.

  本发明提供了一类新型的苏丹红染料，其中一些染料被功能化以允许它们与感兴趣的共轭伴侣（例如生物分子、药物、毒素等）耦合。还提供了这些染料的共轭物、制备和使用这些染料及其共轭物的方法以及包括这些染料及其共轭物的试剂盒。
• GLYCOSYL DONOR, PREPARATION METHOD THEREFOR, AND USE THEREOF
  申请人：SICHUAN UNIVERSITY

  公开号：US20220127239A1

  公开（公告）日：2022-04-28

  A glycosyl donor represented by formula (I) is used for preparing an S-glycoside compound represented by formula (III), an O-glycoside compound represented by formula (V), and a C-glycoside compound represented by formula (V). The glycosyl donor is a raw material in the preparation of O-glycoside, S-glycoside, and C-glycoside compounds by means of a free radical reaction, most of which have a special α configuration.

  使用式(I)所代表的糖基供体，可用于制备式(III)所代表的S-糖苷化合物，式(V)所代表的O-糖苷化合物和式(V)所代表的C-糖苷化合物。该糖基供体是通过自由基反应制备O-糖苷化合物、S-糖苷化合物和C-糖苷化合物的原料之一，其中大部分具有特殊的α构型。