具有两种基于磷的抗衡离子的结构独特的离子液体磷酸nium和硫代磷酸phospho,其中的阴离子部分由磷酸二芳基酯或磷酸二芳基酯表示,阳离子为四烷基phosph基团,其NMR行为不同。磷酸phospho在1 H,13 C和31 P NMR的化学位移方面显示出显着变化。á。对于四烷基溴化and和磷酸二芳基酯的物理混合物,相应的化学位移,,-硫代磷酸酯在NMR方面与其合成前体的行为几乎相似,因此表明磷酸phosph与磷的相互作用具有显着的共价成分,更类似于液态离子对,而硫代磷酸盐与phosph的相互作用本质上主要是离子性的。通过PFGSE-NMR实验研究的平移扩散行为以及这些离子液体在氯仿溶液中的离子电导率证实了这一假设。在离子缔合程度方面,可以有效地观察到phospho阳离子中烷基链长度的变化。这项研究的结果可能有助于深入了解这些离子液体的溶液状态行为,
METHOD FOR SYNTHESIZING 2-ALKYL-4-TRIFLUOROMETHYL-3-ALKYLSULFONYLBENZOIC ACIDS
申请人:Bayer CropScience Aktiengesellschaft
公开号:US20180305302A1
公开(公告)日:2018-10-25
A process for preparing 2-alkyl-4-trifluoromethyl-3-alkylsulfonylbenzoic acids of the formula (I) is described.
Here, the substituents are radicals such as alkyl and substituted phenyl.
METHOD FOR PRODUCING 3-ALKYLSULFANYL-2-CHLORO-N-(1-ALKYL-1H-TETRAZOL-5-YL)-4-TRIFLUOROMETHYL-BENZAMIDES
申请人:Bayer CropScience Aktiengesellschaft
公开号:US20190233382A1
公开(公告)日:2019-08-01
The invention relates to a method for producing 3-alkylsulfanyl-2-chloro-N-(1-alkyl-1H-tetrazol-5-yl)-4-trifluoromethyl-benzamides of formula (I). In said formula, the substituents R
1
and R
2
represent residues such as alkyl and substituted phenyl.
A method of preparing a polycarbonate nanocomposite comprising forming a reactant mixture comprising a nanomaterial, a solvent, a dihydroxy compound and an activated carbonate; and polymerizing the dihydroxy compound and the activated carbonate in the presence of the solvent to form the polycarbonate nanocomposite is disclosed. Also disclosed are polycarbonate nanocomposites prepared in accordance with this method, and thermoplastic compositions comprising the polycarbonate nanocomposites.