Chakraborti.Chemoselective aryl alkyl ether cleavage by thiophenolate anion through its in situ generation in catalytic amount[J]. Tetrahedron Letters .1997(50)Mrinal K. Nayak,Asit K. Chakraborti.  Chemoselective aryl alkyl ether cleavage by thiophenolate anion through its in situ generation...
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 ...
alkyl polyoxyethylene ether acetate 【化】 烷基聚氧乙烯醚乙酸酯 polyoxyethylene alkyl phenyl ether 【化】 聚氧化亚乙基烷基苯基醚; 聚氧乙烯烷基苯基醚 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...
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...
The intermediate for preparing the prasugrel has a structural format as the right, wherein R stands for alkyl or aryl. 本发明所述的用于制备普拉格雷的中间体结构式如右:其中R代表烷基或芳基。 ip.com 9. The cumulative risk of various alkyl- or aryl-substituted sulfonic acid ester impurities should...
The novel compounds are aryl-2,3-epoxyalkyl ethers or thioethers or the corresponding thiirane compounds having a mesogenic aromatic component and a chiral component having a three-membered heterocyclic ring, wherein, in the general formula (1), <IMAGE> (I) the symbols have the following meani...
Scheme 9. Pd(II)-catalyzed C-H arylation of N-alkyl acetanilides with aryl boronic acids. Soon afterwards, Pd(II)-catalyzed C-H arylations of electron-rich (hetero)arenes (35, 37) with aryl boronic acids, benzaldimines (39) with aryl-BF3K salts, and ferrocenes (41) with aryl boron...
PURPOSE:To advantageously obtain an aralkyl aryl ether by reacting an alkoxyphenol with an aralkyl halide in a polar solvent. CONSTITUTION:An alkoxyphenol is reacted with an aralkyl halide using, preferably a basic compound or a phase-transfer catalyst, especially a phase-transfer catalyst such ...
Alkyl vinyl ether N - contains the aryl maleimide 专利内容由知识产权出版社提供 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 ...
(R)-hydroxy-3,4,5,6-tetrahydro-2H-pyran-2-ones, the hydroxy acid form of said pyranones, the pharmaceutically acceptable salts of said hydroxy acids, and the lower alkyl, and phenyl, dimethylamino or acetylamino substituted lower alkyl esters of said hydroxy acid, processes for preparing the...