. Author manuscript; available in PMC: 2011 Oct 28.

Published in final edited form as: Tetrahedron. 2008 Jul 14;64(29):6870–6875. doi: 10.1016/j.tet.2008.03.071

Table 2.

Scope of Enyne Cycloisomerization^a

entry	enyne	product	yield (%)^b,^c
1
	1 R = Me	2	90
	3 R = Et	4	92
	5 R = ⁿPr	6	97
	7 R = ⁱPr	8	99
2	9	10	82

Reaction Conditions: 5 mol% Ni(COD)₂, 10 mol% IDTB, 0.1M 1, 60 °C, 1h.

Isolated yield, average of two runs.

>95:5 E:Z based on ¹H NMR analysis of crude reaction mixture.