A Highly Selective and General Palladium Catalyst for the Oxidative Heck Reaction of Electronically Nonbiased Olefins
作者:Erik W. Werner、Matthew S. Sigman
DOI:10.1021/ja1060998
日期:2010.10.13
A general, highly selective oxidative Heck reaction is reported. The reaction is high-yielding under mild conditions without the need for base or high temperatures, and the selectivity is excellent, without the requirement for electronically biased olefins or other specific directing groups. A preliminary mechanistic investigation suggests that the unusually high selectivity may be due to the catalyst's sensitivity to C-H bond strength in the selectivity-determining beta-hydride elimination step.
Series of Compounds for Treatment of Skin Diseases and Other Conditions
申请人:Unigen, Inc.
公开号:US20200115307A1
公开(公告)日:2020-04-16
Compounds and methods related to the prevention and treatment of diseases and conditions, some of which are facilitated by melanogenesis are disclosed. Specifically, the present subject matter includes a series of compounds and compositions and their use for anti-melanogenic and antioxidant activity. This subject matter also includes the treatment of skin disorder due to acne vulgaris and related inflammatory and post inflammatory hyperpigmentation. Methods for synthesizing contemplated compounds are also disclosed.