Rhenium‐Catalyzed Arylation–Acyl Cyclization between Enol Lactones and Organomagnesium Halides: Facile Synthesis of Indenones
作者:Binjing Hu、Xinyi Cheng、Ying Hu、Xingchen Liu、Konstantin Karaghiosoff、Jie Li
DOI:10.1002/anie.202103465
日期:2021.7.5
A set of rhenium-catalyzed arylation–acyl cyclizations between (hetero)arylmagnesium halides and enol lactones through a cascade C(sp2)−C(sp2)/C(sp2)−C(sp2) bondformation under mild reaction conditions has been developed. Indeed, a wide range of functional groups on both organomagnesium halides and enol lactones is well tolerated by the simple rhenium catalysis, thus furnishing polyfunctionalized
The Synthesis of 2-Alkylated Cyclopentene-1,3-diones: Novel Compounds with Olfactory Properties
作者:Helen C. Hailes、Ben Isaac、M. Hashim Javaid
DOI:10.1081/scc-120015556
日期:2003.3
The syntheses of 2-butyl-4,5-dimethylcyclopent-4-ene-1,3-dione, possessing a buttery jasmine odor, and a series of analogues have been carried out via the synthesis of butenolactones, with subsequent conversion to 4,5-dimethylcyclopent-4-ene-1,3-dione and, an alkylation strategy. The compound with the strongest odor characteristics, has also been synthesised using a Pauson-Khand reaction and selective oxidative route.