Manganese-Mediated Intermolecular Arylation of<i>H</i>-Phosphinates and Related Compounds
作者:Olivier Berger、Jean-Luc Montchamp
DOI:10.1002/chem.201404507
日期:2014.9.22
intermolecular radical functionalization of arenes with aryl and alkyl H‐phosphinate esters, as well as diphenylphosphine oxide and H‐phosphonate diesters, is described. The novel catalytic MnII/excess MnIV system is a convenient and inexpensive solution to directly convert Csp2H into CP bonds. The reaction can be employed to functionalize P‐stereogenic H‐phosphinates since it is stereospecific. With
Michaelis–Arbuzov reaction of carboxylicacids and triaryl phosphites for preparing arylphosphonates under anhydride-free conditions has been reported. In this context, triaryl phosphites serve as both reagents for activating the carboxylicacids and substrates for the reaction. There have been no reports to date of efficient and direct methods for the in situ activation of carboxylicacids using triaryl phosphites