Highly Enantioselective Rhodium(I)-Catalyzed Alder-ene-type Cycloisomerization of 1,7-Enynes
作者:Jingwen Zeng、Wei Fang、Bijin Lin、Gen-Qiang Chen、Xumu Zhang
DOI:10.1021/acs.orglett.1c04171
日期:2022.1.28
asymmetric cycloisomerization of 1,7-enynes is regarded as a formidable challenge due to the poor ability of 1,7-enynes to serve as bidentate ligands to metal. In this Letter, a highly enantioselective rhodium(I)-catalyzed Alder-ene-type cycloisomerization of 1,7-enynes is disclosed, offering an efficient method for the synthesis of a wide range of fused six-membered cyclic compounds. Furthermore, a high
由于 1,7-烯炔作为金属双齿配体的能力差,过渡金属催化的 1,7-烯炔不对称环异构化被认为是一项艰巨的挑战。在这封信中,公开了一种高度对映选择性的铑 (I) 催化的 1,7-烯炔的 Alder-ene 型环异构化,为合成各种稠合六元环状化合物提供了一种有效的方法。此外,还进行了高周转频率实验和氘标记实验,以深入了解这种转变。