合成了一系列1,3-双磷酸D-甘油酸(1,3-BPG)1的构象限制类似物以用作抑制剂3-PGK(EC 2.7.2.3)。这些化合物具有非断裂性的膦酸酯键,并且还掺入了α-卤素取代基,使它们成为天然底物的等极性和等规模拟物。单环芳基两个磷酰基中心之间的核提供了连接这些部分和基因座的刚性框架,以供进一步取代。这些化合物针对人类3-PGK进行了测试,发现具有良好的竞争性抑制剂。α-氟的膦酸将对酶的亲和力提高到亚微摩尔范围。IC 50数据与p K a 3和p K a 4值的相关性表明,磷酰基的酸度对蛋白质 捆绑。
Synthesis of aryl(difluoromethylenephosphonates) via electrophilic fluorination of α-carbanions of benzylic phosphonates with N-fluorobenzenesulfonimide
作者:Scott D. Taylor、Christopher C. Kotoris、A.Nicole Dinaut、Mei-Jin Chen
DOI:10.1016/s0040-4020(97)10395-7
日期:1998.2
The electrophilic fluorination of a wide variety of benzylic phosphonates with N-fluorobenzenesulfonimide has been examined. The fluorination reaction proceeds well in the presence of an array of functional groups such as nitro, bromo, ketone, ester, phenyl and ether groups. Phenyl and biphenyl derivatives containing two α,α-difluoromethylenephosphonate groups can also be prepared. This procedure is
Synthesis, structure, and reactivity of fluorous phosphorus/carbon/phosphorus pincer ligands and metal complexes
作者:Róbert Tuba、Verona Tesevic、Long V. Dinh、Frank Hampel、J. A. Gladysz
DOI:10.1039/b502309b
日期:——
3-C6H4(CH3)(CH2P(CH2CH2R(fn))2)(4-R(fn)) in 1 : 3 to 1 : 5 ratios. Workups give -R(fn) in 4--17% yields. Similar results are obtained photochemically. Reaction of 1,3-C6H4(CH2Br)2 and HP(CH2CH2R(f8))2 (5) at 80 degrees C (neat, 1 : 2 mol ratio) gives instead of simple substitution the metacyclophane [1,3-C6H4(CH2P(CH2CH2R(f8))2 CH2-1,3-C(6)H(4)CH(2)P[lower bond 1 end](CH2CH2R(f8))2C[upper bond 1 end]H2](2+)2Br-
Synthesis of benzylic mono(α,α-difluoromethylphosphonates) and benzylic bis(α,α-difluoromethylphosphonates) via electrophilic fluorination
作者:Scott D. Taylor、A.Nicole Dinaut、Avinash N. Thadani、Zheng Huang
DOI:10.1016/0040-4039(96)01847-3
日期:1996.11
A series of benzylicmono(α,α-difluoromethylphosphonates) and benzylicbis(α,α-difluoromethylphosphonates) have been prepared viaelectrophilicfluorination of the corresponding benzylic phosphonates.
Turn-on fluorescence sensor for mono- and di-phosphonic acid derivatives using anthracene-based diamidine and its detection of amidinium-phosphonate and amidinium formation
di-phosphonic acid and mono-phosphonic acid derivatives using the anthracene-based diamidine 1 has been investigated. The diamidine 1 forms 1:1 and 1:2 complexes with the di-phosphonic acid and mono-phosphonic acid derivatives, respectively, and showed a blue fluorescence (λem = 432–442 nm) in a DMSO solution. The formation of amidinium-phosphonate (complexformation) and dissociated amidinum (λem = 468 nm as a
使用基于蒽二脒二膦酸和单-膦酸衍生物的荧光检测1进行了研究。的二脒1种形式1:1和1:2个络合物分别与二膦酸和单-膦酸衍生物,并呈现出蓝色荧光(λ EM 中的DMSO溶液= 432-442纳米)。脒鎓膦酸酯(复合物形成)和离解amidinum的形成(λ EM = 468纳米作为宽带)通过在荧光波长的差异区分,并且通过DOSY NMR光谱和TD-DFT计算证实。与二am 1形成1:2络合物 提出了在甲基膦酸之间具有另外的分子间氢键的甲基膦酸。
Synthesis of Rigid<i>π</i>-Conjugated Mono-, Bis-, Tris-, and Tetrakis(terpyridine)s: Influence of the Degree and Pattern of Substitution on the Photophysical Properties
作者:Andreas Winter、Christian Friebe、Martin D. Hager、Ulrich S. Schubert
DOI:10.1002/ejoc.200800857
日期:2009.2
series of rigid π-conjugated mono-, bis-, tris-, and tetrakis(terpyridine)s 3–8 was synthesized in high yields by means of Horner–Wadsworth–Emmons (HWE) reactions between benzyl phosphonates 1 and an aldehyde-functionalized terpyridine derivative 2. The photophysicalproperties of the materials in solution and in the solid state depend strongly both on the numbers of terpyridine moieties attached to the