An efficient synthesis of linear and angular furanocoumarins has been carried out starting from iodoumbelliferone derivatives. First synthesis of 6-iodoumbelliferone is described. The average yields are higher than those reported before.
Zubia,Luis,Massanet,Collado
p. 4239 - 4246
(2007/10/02)
Synthesis of the Natural Furanocoumarin, Prangosine
A short synthesis of prangosine, an aminofuranocoumarin constituent of Prangos pabularia, is discribed.Reaction of 6-bromoumbelliferone with the cuprous salt of N,N-diallyl-2-amino-2-methylbut-3-yne yielded N,N-diallylprangosine, deallylation of which gave the natural product.
Schneiders, Gail E.,Stevenson, Robert
p. 1801 - 1808
(2007/10/02)
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