The compounds are 4-aryl substituted buta-2,3-dienoic acids and esters thereof which may also be lower alkyl-substituted at any of the 2- and 4-positions, e.g., 4-(p-methoxyphenyl)-2-methyl-buta-2,3-dienoic acid. The compounds are useful as pharmaceuticals, e.g., as anti-inflammatory agents and hypolipidemic agents.
photoactivation of the electrondonor–acceptor (EDA) complex. The reaction avoids the requirement for photocatalysts, bases, hydrogen donor reagents, any other additives, and harsh conditions, enabling the facile synthesis of various functionalized γ-hydroxy (E)-alkenylsulfonyl fluorides. These multifunctional sulfonyl fluorides can be further diversified, providing access to various privileged molecules
基于电子供体-受体 (EDA) 复合物的光活化,提出了使用 FSO 2 Cl 进行炔丙醇的自由基氢氟磺酰化。该反应不需要光催化剂、碱、供氢试剂、任何其他添加剂和苛刻的条件,从而能够轻松合成各种官能化的γ-羟基( E )-烯基磺酰氟。这些多功能磺酰氟可以进一步多样化,提供各种具有生物相关性的特殊分子。
Regiodivergent Synthesis of Functionalized Indene Derivatives via Pt-Catalyzed Rautenstrauch Reaction of Propargyl Carbonates
作者:Jinbo Zhao、Daniel A. Clark
DOI:10.1021/ol300158d
日期:2012.4.6
A regiodivergent synthesis of functionalized indene derivatives from a Pt-catalyzed Rautenstrauch reaction of propargyl carbonate is described. A one-pot Rautenstrauch/Tsuji-Trost reaction delivering 2-indanones was realized efficiently using this methodology.