Nanoscale Molecular Rods with a New Building Block for Solubility Enhancement
作者:Pablo Wessig、Kristian Möllnitz
DOI:10.1021/jo800341k
日期:2008.6.1
A new buildingblock bearing a [1,3]dioxolo[4,5-f][1,3]benzodioxole core was developed to enhance the solubility of molecular rods by lateral alkyl chains. On incorporation in molecular rods with oligospiroketal structure, the straight geometry is retained, which was concluded from the X-ray crystal structure analysis of one of the rods. The determination of the solubility of a collection of rods bearing
开发了一种新的带有[1,3] dioxolo [4,5- f ] [1,3]苯并二恶唑核的结构单元,以通过侧链烷基链增强分子棒的溶解性。在掺入具有低螺缩酮结构的分子棒中时,保留了直的几何形状,这是根据其中一根棒的X射线晶体结构分析得出的结论。确定带有该结构单元的棒的集合的溶解度表明,丁基已经有效地阻碍了棒的聚集,因此导致溶解度的显着提高。哌啶环位于杆的末端,这为通用功能化提供了机会。因此,Ñ,Ñ制备了“-双(叠氮乙酰基)-官能化的棒”,该棒可以通过“点击”反应引发的刚性连接。
Synthesis of 3-(substituted)-2,4,8,15-tetroxa-3-phosphadispiro[5.2.5]hexadecane-3-oxides
作者:C. Suresh Reddy、Y. Hari Babu、N. Ravi Sankar、C. Devendranath Reddy
DOI:10.1002/jhet.5570410630
日期:2004.11
Novel 3-(substituted)-2,4,8,15-tetroxa-3-phosphadispiro[5.2.5]hexadecane-3-oxides (3-12) have been synthesized by cyclization of 1,5-dioxaspiro[5.5]undecande-3,3-dimethanol (1) with various substituted aryl phosphorus dichloridates (2) in dry toluene-THF in the presence of triethylamine at 40-60 oC. Their molecular structures were determined by ir, nmr and mass spectral studies and were screened for
通过环化1,5-二氧杂螺[5.5]十一碳酸酯合成了新型3-(取代)-2,4,8,15-四氧-3-磷酸二螺[5.2.5]十六烷-3-氧化物(3-12)。在三乙胺存在下于40-60 o C在无水甲苯-THF中的-3,3-二甲醇(1)与各种取代的二氯化磷芳基磷酯(2)。其分子结构由ir,nmr和质谱研究确定,分别为筛选了针对弯曲弯曲菌和黑曲霉的抗真菌活性,以及对金黄色葡萄球菌和大肠杆菌的抗菌活性。他们大多数都有重要的活动。
Synthesis of New Pentaerythritol-Based Gemini Surfactants
作者:M. C. Murguía、R. J. Grau
DOI:10.1055/s-2001-16060
日期:——
New dimeric or gemini surfactants bearing double-chain with two or four sulfonate groups, and quadruple-chain with four sulfonate groups, were prepared from pentaerythritol in good overall yields. All these surfactants showed excellent surface-active properties.
[EN] METHOD FOR MANUFACTURING (METH)ACRYLOYL GROUP-CONTAINING POLYOL COMPOUND, (METH)ACRYLOYL GROUP-CONTAINING POLYOL COMPOUND, AND URETHANE (METH)ACRYLATE<br/>[FR] PROCÉDÉ DE FABRICATION DE COMPOSÉ POLYOL CONTENANT DES GROUPES (MÉTH)ACRYLOYLE, COMPOSÉ POLYOL CONTENANT DES GROUPES (MÉTH)ACRYLOYLE, ET (MÉTH)ACRYLATE D'URÉTHANE
申请人:DAINIPPON INK & CHEMICALS
公开号:WO2015000123A1
公开(公告)日:2015-01-08
To provide a simple, efficient method for manufacturing a (meth)acryloyl group-containing polyol compound, a (meth)acryloyl group-containing polyol compound produced by the manufacturing method, and an urethane (meth)acrylate produced by using the compound.A method for manufacturing a (meth)acryloyl group-containing polyol compound (x3) includes the steps of producing a hydroxyl group-containing ketal compound (x1) by reacting a polyol compound (A) having at least three hydroxyl groups in the molecular structure with a cyclic ketone compound (B) at the proportion in which the ratio [(OH)/(CO)] of the number of moles of hydroxyl groups (OH) included in the polyol compound (A) to the number of moles of carbonyl groups (CO) included in the cyclic ketone compound (B) falls within the range of 3 to 12 in an organic solvent (S) in the presence of an acid catalyst, producing a (meth)acrylate compound (x2) by (meth)acrylating hydroxyl groups included in the resulting hydroxyl group-containing ketal compound (x1), and hydrolyzing the resulting (meth)acrylate compound (x2).