Ruthenium-Catalyzed Aromatization of Enediynes via Highly Regioselective Nucleophilic Additions on a π-Alkyne Functionality. A Useful Method for the Synthesis of Functionalized Benzene Derivatives
作者:Arjan Odedra、Chang-Jung Wu、Taduri Bhanu Pratap、Chun-Wei Huang、Ying-Fen Ran、Rai-Shung Liu
DOI:10.1021/ja043047j
日期:2005.3.1
TpRu(PPh3)(CH3CN)2 PF6 (10 mol %) catalyst effected the nucleophilicaddition of water, alcohols, aniline, acetylacetone, pyrroles, and dimethyl malonate to unfunctionalized enediynes under suitable conditions (100 degrees C, 12-24 h) and gave functionalized benzene products in good yields. In this novel cyclization, nucleophiles very regioselectively attack the internal C1' alkyne carbon of enediynes
Alkylated diaryl amines further substituted by an alkoxy group on one or more aryl carbon atoms exhibit excellent antioxidant activity in lubricant compositions.
The present invention relates to a novel class of selective estrogen receptor modulators (SERMs). The SERM compounds are applicable for use in the prevention and/or treatment of a variety of diseases and conditions including prevention and treatment of cancers such as prostate and breast cancer, osteoporosis, hormone-related diseases, hot flashes or vasomotor symptoms, neurological disorders, cardiovascular disease and obesity.
The present invention relates to a novel class of selective estrogen receptor modulators (SERMs). The SERM compounds are applicable for use in the prevention and/or treatment of a variety of diseases and conditions including prevention and treatment of cancers such as prostate and breast cancer, osteoporosis, hormone-related diseases, hot flashes or vasomotor symptoms, neurological disorders, cardiovascular disease and obesity.