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. Author manuscript; available in PMC: 2010 Feb 19.
Published in final edited form as: Org Lett. 2009 Feb 19;11(4):899–902. doi: 10.1021/ol802844z

Figure 1.

Figure 1

Secondary Amines in the Amidine Synthesis.a,b

a. Reaction conditions: 5.0 mol % Pd2(dba)3, 10.0 mol % of xantphos, 1.0 equiv K2CO3, 3.0 equiv R2NH, THF [conc = 0.05 M], 65 °C, 1.5–6 h. b. Isolated yields. c. 10.0 mol % Pd2(dba)3, 20.0 mol% of xantphos, and 5.0 equiv R2NH were used. d. The only successful example in using 5.0 mol % Pd(PPh3)4.