N. Cairns, L. Harwood, D. P. Astles
1994
Citations
0
Influential Citations
14
Citations
Journal
Journal of The Chemical Society-perkin Transactions 1
Abstract
6-Allyl-7-hydroxycoumarin 3 and the naturally occurring linear coumarin, demethylsuberosin (7-hydroxy-6-prenylcoumarin)7 have been prepared in goods yields via regioselective boron halide catalysed ortho-Claisen rearrangements. This procedure provides an efficient alternative approach to linear substituted coumarins without using a halogen to block the 8-(angular) position.