Studies in decarboxylation. Part VI. A comparison of the transition states for the decarboxylation of β-keto- and βγ-unsaturated acids
作者:D. B. Bigley、J. C. Thurman
DOI:10.1039/j29680000436
日期:——
The effect of substituents on the rate of thermal decarboxylation of βγ-unsaturated acids is compared to their effect on the decarboxylation of β-keto-acids. From the close similarity observed, it is argued that the reactions have nearly identical transition states. It is demonstrated that the transition state for the olefinic acids is largely non-polar; by analogy, the keto-acids are concluded to
Photoinduced reductive Reformatsky reaction of α-haloesters and aldehydes or ketones by cooperative dual-metal catalysis
作者:Qi-Long Chen、Le Mao、Yi-Fan Pan、Heng Cai、Xiao-Ming Zhang、Fu-Min Zhang、Ai-Jun Ma、Jin-Bao Peng、Yong-Qiang Tu
DOI:10.1039/d3cc04671k
日期:——
A photoinduced reductive Reformatskyreaction by cooperative dual-metal catalysis is described. This methodology enables the implementation of this venerable reaction in environmentally friendly conditions, obviating the need for a stoichiometric amount of metals. A broad range of synthetically useful β-hydroxy esters can be efficiently prepared in moderate to high yields using this protocol.