Effective [3+1+1+1] Cycloaddition to Six‐Membered Carbocycle Based on DMSO as Dual Carbon Synthon
作者:Hui Li、Miaodong Su、Zhiwen Nie、Tonglin Yang、Weiping Luo、Qiang Liu、Cancheng Guo
DOI:10.1002/adsc.202100115
日期:2021.6.21
A [3+1+1+1] cycloaddition was developed among 2-arylpropene, ketone and DMSO in the presence of K2S2O8. 2-arylpropene provides three carbons, ketone offers one carbon, and DMSO as dual carbon donor contributes two carbons to the six-membered carbocycle. It gave the cyclohexene motif and spirocyclohexene skeleton. Four C−C bonds formed in this process. Both propylene and ketone could be well tolerated
在K 2 S 2 O 8存在下,2-芳基丙烯、酮和DMSO之间发生了[3+1+1+1]环加成反应。2-芳基丙烯提供三个碳,酮提供一个碳,DMSO作为双碳供体为六元碳环贡献两个碳。它给出了环己烯基序和螺环己烯骨架。在此过程中形成了四个 C-C 键。丙烯和酮都可以很好地耐受,并以有用的产率得到相应的环己烯或螺环己烯基序。基于对照实验,提出了一种可能的机制。