1: With trifluorormethanesulfonic acid in chloroform T=20°C; Houben-Hoesch reaction; Inert atmosphere; 2: With water in chloroform Houben-Hoesch reaction; Cooling with ice;
参考文献
Raja, Erum K.; Klumpp, Douglas A.
Tetrahedron Letters, 2011 , vol. 52, # 40 p. 5170 - 5172