. Author manuscript; available in PMC: 2011 Aug 1.

Published in final edited form as: Tetrahedron. 2010 Aug 1;66(33):6391–6398. doi: 10.1016/j.tet.2010.04.094

Table 1.


Entry	Diene	Dienophile	Method	Adduct	Yield (%)
1		11	A		26
2		11	A		35
3		17	B		95
4		17	B		91

Key: Method A: 2,6-di-tert-butyl-4-methylphenol, 5.0 M LiClO₄ in THF, 100 °C, 60 h; Method B: 2,6-di-tert-butyl-4-methylphenol, toluene, 100 °C, 24 h.