The bicycle rearrangement. 5. Relationship to the di-.pi.-methane rearrangement and control by bifunnel distortion. Mechanistic and exploratory organic photochemistry
The bicycle rearrangement. 5. Relationship to the di-.pi.-methane rearrangement and control by bifunnel distortion. Mechanistic and exploratory organic photochemistry
Gold-Catalyzed Oxidative Cyclization of 1,5-Enynes Using External Oxidants
作者:Dhananjayan Vasu、Hsiao-Hua Hung、Sabyasachi Bhunia、Sagar Ashok Gawade、Arindam Das、Rai-Shung Liu
DOI:10.1002/anie.201102581
日期:2011.7.18
Golden circle: Two gold‐catalyzed oxidativecyclizations of 1,5‐enynes using 8‐methylquinoline N‐oxide are presented (see example). Experimental results indicate that both reactions proceed through prior oxidation of alkyne to form α‐carbonyl intermediates and subsequent intramolecular carbocyclization.
The bicycle rearrangement. 5. Relationship to the di-.pi.-methane rearrangement and control by bifunnel distortion. Mechanistic and exploratory organic photochemistry