... T. O'Connor B. Heterocycles 1989, 28: 55; 5c Arcadi A. Cacchi S. Fabrizi G. Marinelli F. Moro L. Synlett 1999, 1432; ... 2 equiv), Pd(PPh 3 ) 2 Cl 2 (5% mol), NEt 3 , DMF, 100 °C, 4 h; (iii) propargylalcohol or -amine, Pd(PPh 3 ) 2 Cl 2 (5% mol), CuI (5% mol), NEt 3 , THF, 50 °C, 4 h ...