作者:Ben Feringa、Thomas van Leeuwen、Thomas Neubauer
DOI:10.1055/s-0033-1339156
日期:——
The degree of hydrolysis of polyphosphoric acid (PPA) has a crucial effect on the regioselectivity of the PPA-mediated synthesis of indanones. It was found that the regioselectivity can be switched by employing PPA with either a high or low content of P2O5. This methodology was used for the regioselective synthesis of a range of electron-rich indanones, including a natural sesquiterpene.