Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Reagents and conditions: (a)481 Na2S·9H2O, CuI, 1,10-phenanthroline, DMF, 140 °C, N2, 16 h; (b) FeCl3, DCM/MeNO2, bubbling with N2, 0 °C, 10 min; (c)482 Pd2(dba)3, t-Bu3P·HBF4, NaHCO3, THF/H2O, 80 °C, 2 days; (d) premixed [MeOCH2PPh3]+Cl– and t-BuOK, THF, rt, 2 h; (e) Bi(OTf)3, dry 1,2-DCE, rt, 3 h; (f)483 (1) MesMgBr, THF, rt, overnight, (2) BF3·OEt2, DCM, 3 h; (g) DDQ, DCM, rt, 6 h.
