Skip to main content
. Author manuscript; available in PMC: 2011 Aug 18.
Published in final edited form as: J Am Chem Soc. 2010 Aug 18;132(32):10961–10963. doi: 10.1021/ja104896b

Table 1.

Ni-Catalyzed Hydroalumination of Phenylacetylenea

graphic file with name nihms222574t1.jpg
entry Ni complex conv (%)b 1:2:3 (%)b
1 Ni(acac)2 97 68:19:13
2 NiCl2•6H2O 95 45:35:20
3 Ni(cod)2 >98 69:14:17
4 Ni(PPh3)4 >98 55:32:13
5 Ni(PPh3)2Cl2 >98 93:7:<2
6 Ni(dppe)Cl2 92 3:97:<2
7 Ni(dppp)Cl2 >98 <2:>98:<2
8 Ni(dppb)Cl2 76 8:92:<2
9 Ni(dppf)Cl2 75 5:95:<2
a

Reactions performed under N2 atm; <2% alkynyl aluminum product observed in all cases.

b

By analysis of 400 MHz 1H NMR spectra of unpurified mixtures after quench with D2O (0 °C, 30 min); see the Supporting Information for details.