2f The re- activity pattern of the cyclic ether formation with respect to ring size has been briefly discussed.3i,96Of the Oalkylation systems described in Section 1.1.2.5.1, the DEAD-Ph3P procedure cannot be used in the preparation of acyclic dialkyl ethers, but alkyl aryl ethers and ...
FIELD: industrial organic synthesis.;SUBSTANCE: invention relates to improved method for manufacturing arylalkyl ethers used, for example, as intermediates for synthesis of drugs and flavor substances. Method comprises charging reactor with homogenous, at normal pressure, mixture containing hydroxyaromating...
aryl chloride 芳基氯 相似单词 aryl 芳基; 芳烃基 rearrangement n. 重新整理 alkyl n. 烷基,烃基 ether n. 醚,大气,苍天,以太 aryl 【医】 芳基, 芳香基 alkyl sulfamide 【化】 N-烷基硫酸二酰胺 poly(ether ether ketone) 【化】 聚醚醚酮 fluoro ether 氟代醚 perfluoro ether 全氟乙醚...
An alkyl and/or aryl silyl ether capped polyether surfactant useful in cleaning compositions. The polyether is described in conjunction with automatic dishwashing detergent composition having improved chlorine bleach stability comprising:(a) an active chlorine containing compound selected from the group consi...
Alkyl aryl ether productionPhenol compounds are O-alkylated with olefins in the presence of acid resin catalysts to give aryl alkyl ethers. In a preferred embodiment, the catalyst comprises perfluorosulfonic acid ion exchange resins.doi:US4299996 ARobert M. Parlman...
Building molecular complexity from simple feedstocks through precise peripheral and skeletal modifications is central to modern organic synthesis. Nevertheless, a controllable strategy through which both the core skeleton and the periphery of an aromatic
专利名称:Alkyl vinyl ether /N - contains the aryl maleimide copolymer the polymer alloy 发明人:BI RU KAAKU,ビ?ル?カーク 申请号:J P 特願昭63-514 39 申请日:19880304 公开号:JP第2582608号B2 公开日:19970219 摘要:A thermodynamically miscible polymer composition containing a copolymer having recur...
USE EXAMPLES Example A Pre-emergence test Solvent: 5 parts by weight of acetone Emulsifier: 1 part by weight of alkylaryl polyglycol ether To produce a suitable preparation of active compound, 1 part by weight of active compound is mixed with the stated amount of solvent, the stated amount ...
The synthesis of the first examples of two new classes of glyoxal bis-dithioacetals: trans-1,4,5,8-tetrathiadecalin and trans-2,3-bis(methylthio) 1,4-dithi... RJ Guilera - 《Tetrahedron》 被引量: 21发表: 1986年 General Asymmetric Hydrogenation of α-Branched Aromatic Ketones Catalyzed ...
In the superacidic HF/SbF5 system, methyl trifluoromethyl ether forms at −78 °C the new tertiary oxonium salt [(CH3)2OCF3]+[Sb2F11]-, which was characterized by Raman and multinuclear NMR spectroscopy and its crystal structure. The same oxonium salt was also obtained by methylation of CH...