A versatile route to trisubstitutedalkenylstannanes is presented. The alkyl and Sn moieties were introduced at the β and α carbon atoms of alkynoates, respectively, in a formal syn addition mode with complete regioselectivity (see scheme). A variety of functional groups were tolerated in the alkylboranes and alkynoates.
A photoredox-catalyzed multifluoromethyl radical addition/SO2 incorporation/polar cyclization cascade approach to multifluoromethylated γ-sultines has been developed. The reaction proceeds with broad functional-group tolerance and good yields. Key to the success of the protocol is use of oxidizable multifluoroalkanesulfinates as bifunctional reagents.
Graphitic Carbon Nitride as a Metal‐Free Heterogeneous Semiconductor Photocatalyst for Fluoroalkylation Reactions
作者:Hao Wang、Fukai Xie、He Wang、Wen Dai
DOI:10.1002/cctc.202301728
日期:——
In this article, we describe a stable semiconductor material, g-CN nanosheets, can serve as a heterogeneous photocatalyst to accomplish intermolecular fluoroalkylation of assorted alkenes with fluoroalkanesulfinates and intramolecular fluoroalkyl migration of alkenyl triflates. The inexpensive and easy-prepared g-CN nanosheets can be recycled for several runs with conserved activity.