Tungsten-Catalyzed Asymmetric Epoxidation of Allylic and Homoallylic Alcohols with Hydrogen Peroxide
作者:Chuan Wang、Hisashi Yamamoto
DOI:10.1021/ja411379e
日期:2014.1.29
A simple, efficient, and environmentally friendly asymmetricepoxidation of primary, secondary, tertiary allylic, and homoallylic alcohols has been accomplished. This process was promoted by a tungsten–bishydroxamic acid complex at room temperature with the use of aqueous 30% H2O2 as oxidant, yielding the products in 84–98% ee.
伯、仲、叔烯丙醇和高烯丙醇的简单、高效和环境友好的不对称环氧化已经完成。该过程在室温下由钨-双异羟肟酸配合物促进,使用 30% H2O2水溶液作为氧化剂,产生 84-98% ee 的产物。
Ir(I)-Catalyzed Enantioselective Decarboxylative Allylic Etherification: A General Method for the Asymmetric Synthesis of Aryl Allyl Ethers
作者:Dongeun Kim、Srinivasa Reddy、Om V. Singh、Jae Seung Lee、Suk Bin Kong、Hyunsoo Han
DOI:10.1021/ol3033237
日期:2013.2.1
Ir(I)-catalyzed enantioselectivedecarboxylative allylic etherification of arylallylcarbonates provides arylallyl ethers. Key to the generality and high stereoselection of the reaction is the use of the intramolecular decarboxylative allylation process and [Ir(dbcot)Cl]2 as an Ir(I) source. Ir(I)-catalyzed diastereoselective decarboxylative allylic etherification, combined with asymmetric aldehyde
DIHYDROPYRIMIDIN-2-ONE COMPOUNDS AND MEDICAL USE THEREOF
申请人:JAPAN TOBACCO INC.
公开号:US20160194290A1
公开(公告)日:2016-07-07
A compound of Formula [I] or a pharmaceutically acceptable salt thereof:
wherein each symbol is defined as in the specification.
化合物的结构式[I]或其药用盐:其中每个符号的定义如规范中所述。
[EN] (4, 5, 6, 7-TETRAHYDRO-1-H-INDOL-7-YL) ACETIC ACID DERIVATIVES FOR TREATMENT OF ALZHEIMER'S DISEASE<br/>[FR] DERIVES D'ACIDE (4,5,6,7-TETRAHYDRO-1-H-INDOL-7-YL)-ACETIQUE DESTINES AU TRAITEMENT DE LA MALADIE D'ALZHEIMER
申请人:MERCK SHARP & DOHME
公开号:WO2005108362A1
公开(公告)日:2005-11-17
Compounds of formula: (I); are disclosed. The compounds are useful in treating or preventing diseases associated with deposition of Aβ in the brain.