Tetrahedron Letters p. 4831 - 4834 (1981)
Update date:2022-08-03
Topics:
Ward, R.S.
Thatcher, K.S.
Acid-catalysed ring opening of the spirodienones (2a) and (2b) using p-toluenesulfonic acid affords the styrene derivatives (3a) and (3b), while treatment with acetic anhydride/H2SO4 affords the furan derivatives (4a) and (4b).
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