Photocatalytic Redox-Neutral Alkoxyacylation of Alkenes
作者:Fu-Tong Cen、Yu Sun、Jian-Ping Qu、Yan-Biao Kang
DOI:10.1021/acs.orglett.3c03583
日期:2023.12.22
blocks in organic synthesis. By utilizing CBZ6, with an oxidative potential of −2.16 V (vs the saturated calomel electrode), as a redox-neutral photocatalyst, alkoxyacylation of olefins was accomplished under the irradiation of visible light via a cationic intermediate. It involves the addition of an acyl radical to olefin to form a radical intermediate and the following oxidation of the radical intermediate
An Alternative Approach to Direct Aldol Reaction Based on Gold-Catalyzed Methoxyl Transfer
作者:Moran Zhang、Yunxia Wang、Yang Yang、Xiangdong Hu
DOI:10.1002/adsc.201100789
日期:2012.4.16
A mild and catalyzed alternative to the direct aldol reaction has been developed based on the gold‐catalyzed methoxy group transfer from dimethyl acetals to terminal alkynes. Due to the simultaneous activation of the acetals, this aldol approach is only functional for acetals but not aldehydes. A ligand effect from the gold complex has also been observed.